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.

A372465 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
3 358
4 3740
5 40194
6 439998
7 4879326
8 54630316
9 616194700
10 6991215286
11 79700776588
12 912207989030
13 10475536585674
14 120641989237890
15 1392811194744288
16 16114668707519404
17 186798818992569818
18 2168990381036497812
19 25222834639587149890
20 293708687012053512870

List of values

[1, 4, 36, 358, 3740, 40194, 439998, 4879326, 54630316, 616194700, 6991215286, 79700776588, 912207989030, 10475536585674, 120641989237890, 1392811194744288, 16114668707519404, 186798818992569818, 2168990381036497812, 25222834639587149890, 293708687012053512870]

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

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