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.

A265974 Expansion of Product_{k>=1} 1/(1 - 3*k*x^k).

Table of values

n a(n)
0 1
1 3
2 15
3 54
4 210
5 699
6 2484
7 7995
8 26610
9 84186
10 269940
11 839238
12 2634579
13 8098194
14 25032282
15 76388265
16 233791104
17 709501596
18 2157488730
19 6523204836
20 19747491810
21 59558682132
22 179762506329
23 541222906812
24 1630300772106
25 4902697929306
26 14748249476553

List of values

[1, 3, 15, 54, 210, 699, 2484, 7995, 26610, 84186, 269940, 839238, 2634579, 8098194, 25032282, 76388265, 233791104, 709501596, 2157488730, 6523204836, 19747491810, 59558682132, 179762506329, 541222906812, 1630300772106, 4902697929306, 14748249476553]