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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A206846 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2,k^2) * binomial(n^2,(n-k)^2) ).

Table of values

n a(n)
0 1
1 2
2 11
3 776
4 921193
5 10359730908
6 1620677532919905
7 1969126979596399128130
8 32593711828578589304123599877
9 3931730912701446701027876250509820962
10 6413805618092047206104426809813307222469463650
11 74040826359052943559114050244071546075856822107307951070

List of values

[1, 2, 11, 776, 921193, 10359730908, 1620677532919905, 1969126979596399128130, 32593711828578589304123599877, 3931730912701446701027876250509820962, 6413805618092047206104426809813307222469463650, 74040826359052943559114050244071546075856822107307951070]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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