(n+1)*(2-n)/2.
1, 1, 0, 2, 5, 9, 14, 20, 27, 35, 44, 54, 65, 77, 90, 104, 119, 135
3 seqfan posts
Fri Oct 8 23:01:20 CEST 2010 [seqfan] Re: trouble with A132337 and A132336
Fri Oct 8 22:58:43 CEST 2010 [seqfan] Re: trouble with A132337 and A132336
Fri Oct 8 22:45:03 CEST 2010 [seqfan] Re: trouble with A132337 and A132336
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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