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.

A012458 Expansion of e.g.f. arcsin(arctan(x)^2), even powers only.

Table of values

n a(n)
0 2
1 -16
2 488
3 -30336
4 3303072
5 -556926720
6 135234491520
7 -44790227865600
8 19434264780034560
9 -10703464305128755200
10 7296385856008015226880
11 -6031102564833737842851840
12 5942962739028147945628999680

List of values

[2, -16, 488, -30336, 3303072, -556926720, 135234491520, -44790227865600, 19434264780034560, -10703464305128755200, 7296385856008015226880, -6031102564833737842851840, 5942962739028147945628999680]

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

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