Number of nondecreasing arrangements of n numbers in -6..6 with sum zero
1, 7, 25, 86, 252, 676, 1656, 3788, 8150, 16660, 32540, 61108, 110780, 194668
1 seqfan posts
Fri Jan 14 16:51:25 CET 2011 [seqfan] Re: Long Linear Recurrences with Small Coefficients