Central trinomial coefficients: largest coefficient of (1+x+x^2)^n.
1, 1, 3, 7, 19, 51, 141, 393, 1107, 3139, 8953, 25653, 73789, 212941, 616227
6 seqfan posts
Tue Oct 25 17:56:49 CEST 2011 [seqfan] Re: automated discovery of unknown formulae
Tue Oct 25 17:56:49 CEST 2011 [seqfan] Re: automated discovery of unknown formulae
Tue Oct 25 17:37:28 CEST 2011 [seqfan] Re: automated discovery of unknown formulae
Tue Oct 25 17:37:28 CEST 2011 [seqfan] Re: automated discovery of unknown formulae
Tue Oct 25 15:58:20 CEST 2011 [seqfan] automated discovery of unknown formulae
Mon Feb 15 14:27:38 CET 2010 [seqfan] Re: Number of points with maximum norm n in A2, A3, A4, A5, D5
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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