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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.

A385948 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(k+6,6) * binomial(n-1,k) * a(k) * a(n-1-k).

Table of values

n a(n)
0 1
1 1
2 8
3 246
4 21750
5 4689546
6 2197062708
7 2046202234224
8 3528088593902364
9 10627093734265740672
10 53295889303479275834616
11 427383379745842299684115608
12 5294446934064450139154214169992
13 98355143996083993836475641916586304
14 2669951662594756888115675117287929721248

List of values

[1, 1, 8, 246, 21750, 4689546, 2197062708, 2046202234224, 3528088593902364, 10627093734265740672, 53295889303479275834616, 427383379745842299684115608, 5294446934064450139154214169992, 98355143996083993836475641916586304, 2669951662594756888115675117287929721248]

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

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