cp's OEIS Frontend

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.

A136469 Column 2 of triangle A136467 (scaled): a(n) = A136467(n+2,2)/4^n.

Table of values

n a(n)
0 1
1 4
2 36
3 972
4 82692
5 22668224
6 20480767016
7 62399482333360
8 654732295896172624
9 24092174555680443592896
10 3156168229958886081384337440
11 1490220874303979634022445823087616

List of values

[1, 4, 36, 972, 82692, 22668224, 20480767016, 62399482333360, 654732295896172624, 24092174555680443592896, 3156168229958886081384337440, 1490220874303979634022445823087616]

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

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