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.

A052555 Expansion of e.g.f. 1/(1-2*x-x^2).

Table of values

n a(n)
0 1
1 2
2 10
3 72
4 696
5 8400
6 121680
7 2056320
8 39715200
9 862928640
10 20832940800
11 553246848000
12 16027872537600
13 503031194265600
14 17001946241280000
15 615694938034176000
16 23782705115000832000
17 976080997055324160000

List of values

[1, 2, 10, 72, 696, 8400, 121680, 2056320, 39715200, 862928640, 20832940800, 553246848000, 16027872537600, 503031194265600, 17001946241280000, 615694938034176000, 23782705115000832000, 976080997055324160000]

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

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