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.

A052677 Expansion of e.g.f. (1-x)/(1-4*x+x^2).

Table of values

n a(n)
0 1
1 3
2 22
3 246
4 3672
5 68520
6 1534320
7 40083120
8 1196737920
9 40196580480
10 1500156806400
11 61585275628800
12 2758072531737600
13 133812468652262400
14 6991529043750451200
15 391391124208051968000
16 23371064978815217664000

List of values

[1, 3, 22, 246, 3672, 68520, 1534320, 40083120, 1196737920, 40196580480, 1500156806400, 61585275628800, 2758072531737600, 133812468652262400, 6991529043750451200, 391391124208051968000, 23371064978815217664000]

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

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