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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.

A335946 a(n) = 1 + Sum_{k=0..n-1} binomial(n,k)^2 * a(k).

Table of values

n a(n)
0 1
1 2
2 10
3 110
4 2154
5 65902
6 2903446
7 174109546
8 13636888810
9 1351801926542
10 165434393561910
11 24497621303302666
12 4317170011370444982
13 892891315599103615082
14 214174328063904077240962
15 58974283594413521123672110
16 18476316023495768160707616490

List of values

[1, 2, 10, 110, 2154, 65902, 2903446, 174109546, 13636888810, 1351801926542, 165434393561910, 24497621303302666, 4317170011370444982, 892891315599103615082, 214174328063904077240962, 58974283594413521123672110, 18476316023495768160707616490]

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

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