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 July 19th, 2018, 05:31 PM #1 Member   Joined: Nov 2015 From: New York State Posts: 41 Thanks: 0 Number Sequence 3mE I'm adding value of the digits in a number, and I treat 0 as 1. I have not graphed this. I don't know a lot about math, but I seem to have a way of systematically obtaining a sequence from "normal" numbers. It goes like this: -35 = 2 -34 = 1 -33 = 0 -32 = -1 -31 = -2 -30 = -2 -29 = 7 -28 = 6 -27 = 5 -26 = 4 -25 = 3 -24 = 2 -23 = 1 -22 = 0 -21 = -1 -20 = -1 -19 = 8 -18 = 7 -17 = 6 -16 = 5 -15 = 4 -14 = 3 -13 = 2 -12 = 1 -11 = 0 -10 = 0 -9 = -9 -8 = -8 -7 = -7 -6 = -6 -5 = -5 -4 = -4 -3 = -3 -2 = -2 -1 = -1 0 = 1 1 = 1 2 = 2 3 = 3 4 = 4 5 = 5 6 = 6 7 = 7 8 = 8 9 = 9 10 = 2 11 = 2 12 = 3 13 = 4 14 = 5 15 = 6 16 = 7 17 = 8 18 = 9 19 = 2 20 = 3 21 = 3 22 = 4 23 = 5 24 = 6 25 = 7 26 = 8 27 = 9 28 = 2 29 = 2 30 = 4 31 = 4 32 = 5 33 = 6 34 = 7 35 = 8 Has anyone come up with this sequence before? If yes, is there a name of it, or has it been categorized? July 19th, 2018, 07:19 PM #2 Math Team   Joined: May 2013 From: The Astral plane Posts: 2,162 Thanks: 879 Math Focus: Wibbly wobbly timey-wimey stuff. Throw us a bone here. How is -35 --> 2? Wouldn't the values of the digits 3 and 5 give 3 + 5 = 8? It looks like you are treating -35 to be (-3)(5) but that isn't how you defined the process. OEIS doesn't have it. -Dan Last edited by topsquark; July 19th, 2018 at 07:22 PM. July 20th, 2018, 07:44 AM #3 Member   Joined: Nov 2015 From: New York State Posts: 41 Thanks: 0 -35, I look at it this way -3 and 5. -3 + 5 = 2, or to make it easier 5 + (-3) = 2. Just adding the numbers that make up -35 and all other numbers that I listed. July 20th, 2018, 08:48 AM #4 Member   Joined: Nov 2015 From: New York State Posts: 41 Thanks: 0 Let me give some examples, so that you see better what I mean. Lets try number -10,000. I stated that I count 0 as 1, so 4x0 I count as 4x1 = 4 Then -1 + 4 = 3 Lets try another number, 2438. 2 + 4 + 3 + 8 = 17, and then adding 1 + 7 = 8 I guess, an application of this could be, taking a year 1984 for example. 1 + 9 + 8 + 4 = 22 so that is 2 + 2 = 4 Last edited by Alamar; July 20th, 2018 at 08:59 AM. July 21st, 2018, 05:17 AM #5 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,417 Thanks: 1025 1234567890 = 1+2+3+4+5+6+7+8+9+0 = 45+1 = 46: 4+6 = 10 ???????? July 22nd, 2018, 05:31 PM   #6
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Quote:
 Originally Posted by Denis 1234567890 = 1+2+3+4+5+6+7+8+9+0 = 45+1 = 46: 4+6 = 10 ????????
Exactly,

1234567890 = 1+2+3+4+5+6+7+8+9+0 = 45+1 = 46: 4+6 = 10
I stated that I treat 0 as 1, so 4 + 6 = 10 = 1 + 1 = 2 Tags 3me, number, sequence Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post thei Number Theory 6 September 11th, 2013 09:06 PM miket Number Theory 0 November 7th, 2010 03:06 AM scottr83 Advanced Statistics 9 July 17th, 2009 10:45 AM aykantspel Real Analysis 4 March 18th, 2009 01:59 PM conjecture Applied Math 5 April 13th, 2008 10:57 AM

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