Triangle read by antidiagonals: T[r+1,c] = T[r,c]+T[r,c+1], but only non prime numbers may be used.
1, 8, 9, 4, 12, 21, 14, 18, 30, 51, 6, 20, 38, 68, 119, 10, 16, 36, 74, 142, 261, 22, 32
3 seqfan posts
Mon Jan 2 08:57:38 CET 2012 [seqfan] Re: A December quiz with a non-prime array
Fri Dec 30 18:34:14 CET 2011 [seqfan] Re: A December quiz with a non-prime array
Wed Dec 28 20:22:49 CET 2011 [seqfan] Re: A December quiz with a non-prime array
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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