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.

A338674 Expansion of Product_{k>=1} 1 / (1 - 5^(k-1)*x^k).

Table of values

n a(n)
0 1
1 1
2 6
3 31
4 181
5 931
6 5431
7 27931
8 159806
9 834806
10 4697306
11 24478556
12 137931681
13 717306681
14 3989650431
15 20958791056
16 115494337931
17 604881056681
18 3333662306681
19 17439531447306
20 95396181837931
21 501716543166056
22 2725636758009806
23 14311071572462931
24 77793648720900431

List of values

[1, 1, 6, 31, 181, 931, 5431, 27931, 159806, 834806, 4697306, 24478556, 137931681, 717306681, 3989650431, 20958791056, 115494337931, 604881056681, 3333662306681, 17439531447306, 95396181837931, 501716543166056, 2725636758009806, 14311071572462931, 77793648720900431]