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January 31st, 2010, 03:58 PM   #21
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Re: A new way to write factorial (p-1)! ?

Here are the values for 100! (p=101)

p-i x a(i)
100 1 1
99 51 50
98 34 33
97 76 73
96 81 77
95 17 16
94 29 27
93 38 35
92 45 41
91 91 82
90 46 41
89 59 52
88 70 61
87 65 56
86 27 23
85 19 16
84 6 5
83 73 60
82 16 13
81 96 77
80 77 61
79 23 18
78 22 17
77 80 61
76 97 73
75 35 26
74 15 11
73 83 60
72 7 5
71 64 45
70 88 61
69 60 41
68 49 33
67 3 2
66 26 17
65 87 56
64 71 45
63 8 5
62 57 35
61 48 29
60 69 41
59 89 52
58 47 27
57 62 35
56 9 5
55 11 6
54 43 23
53 40 21
52 33 17
51 99 50
50 2 1

You see that for 91 x=91 and for 10 x=10. So it is better to put those values aside until you finish removing all the values of the list L.
I did not remove the numbers but you can see the steps. I did it using Excel.
I know it is little bit hard to implement.
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May 29th, 2017, 05:30 AM   #22
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Another one about factorials under the nick Momo which is mine
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