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.

A362408 a(n) = [x^n] (F(x)/F(-x))^n where F(x) = (1 + x)*(1 + x^3).

Table of values

n a(n)
0 1
1 2
2 8
3 44
4 256
5 1502
6 8912
7 53510
8 324352
9 1980332
10 12160008
11 75015162
12 464566144
13 2886488906
14 17985045464
15 112333392044
16 703119387648
17 4409231140086
18 27696141476336
19 174229516043630
20 1097501783152256
21 6921721148337452
22 43701895245221848

List of values

[1, 2, 8, 44, 256, 1502, 8912, 53510, 324352, 1980332, 12160008, 75015162, 464566144, 2886488906, 17985045464, 112333392044, 703119387648, 4409231140086, 27696141476336, 174229516043630, 1097501783152256, 6921721148337452, 43701895245221848]