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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.

A136518 a(n) = A027907(2^n, n), where A027907 = triangle of trinomial coefficients.

Table of values

n a(n)
0 1
1 2
2 10
3 112
4 3620
5 360096
6 116950848
7 129755798400
8 507413158135840
9 7132358041777380352
10 364730093112968976177664
11 68393665694364347188157159424
12 47308574208170527265149009962117120

List of values

[1, 2, 10, 112, 3620, 360096, 116950848, 129755798400, 507413158135840, 7132358041777380352, 364730093112968976177664, 68393665694364347188157159424, 47308574208170527265149009962117120]

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

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