**a(n) = A123311(n)/(n+1), where A123311 forms the central terms of triangle A123305.**

*1, 1, 6, 84, 2010, 70596, 3331006, 199417056, 14559631506, 1259526351000*

*4 seqfan posts*

*Sat May 8 22:48:21 CEST 2010* [seqfan] Re: when does n+1 fail to divide binomial(n^2,n+1) ?

*Sat May 8 22:48:21 CEST 2010* [seqfan] Re: when does n+1 fail to divide binomial(n^2,n+1) ?

*Sat May 8 22:04:51 CEST 2010* [seqfan] Re: when does n+1 fail to divide binomial(n^2,n+1) ?

*Sat May 8 21:45:46 CEST 2010* [seqfan] when does n+1 fail to divide binomial(n^2,n+1) ?

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

Links to OEIS content are included according to
The OEIS End-User License Agreement
.