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.

A372461 Coefficient of x^n in the expansion of 1 / ( (1-x) * (1-x-x^3) )^(2*n).

Table of values

n a(n)
0 1
1 4
2 36
3 370
4 4012
5 44814
6 510198
7 5886206
8 68579020
9 805045276
10 9507007686
11 112817021332
12 1344160003030
13 16069300956726
14 192662610805386
15 2315694030560640
16 27893938099222316
17 336643301659031102
18 4069747367955175236
19 49274614400855690158

List of values

[1, 4, 36, 370, 4012, 44814, 510198, 5886206, 68579020, 805045276, 9507007686, 112817021332, 1344160003030, 16069300956726, 192662610805386, 2315694030560640, 27893938099222316, 336643301659031102, 4069747367955175236, 49274614400855690158]

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

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