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.

A371680 G.f. satisfies A(x) = ( 1 + x * A(x)^2 * (1 + A(x)) )^2.

Table of values

n a(n)
0 1
1 4
2 44
3 648
4 10960
5 200992
6 3886928
7 78043488
8 1611405504
9 33998715264
10 729793915264
11 15886841223936
12 349900041893376
13 7782694227059712
14 174573007616191744
15 3944500600180286976
16 89696369377912622080
17 2051147782339517224960

List of values

[1, 4, 44, 648, 10960, 200992, 3886928, 78043488, 1611405504, 33998715264, 729793915264, 15886841223936, 349900041893376, 7782694227059712, 174573007616191744, 3944500600180286976, 89696369377912622080, 2051147782339517224960]

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

Content is available under The OEIS End-User License Agreement.