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.

A254137 Indices of centered hexagonal numbers (A003215) which are also pentagonal numbers (A000326).

Table of values

n a(n)
1 1
2 52
3 629
4 59432
5 725289
6 68583900
7 836982301
8 79145760592
9 965876849489
10 91334139138692
11 1114621047327429
12 105399517420289400
13 1286271722739003001
14 121630951768874828332
15 1484356453419762135149
16 140362012941764131605152
17 1712946060974682764958369

List of values

[1, 52, 629, 59432, 725289, 68583900, 836982301, 79145760592, 965876849489, 91334139138692, 1114621047327429, 105399517420289400, 1286271722739003001, 121630951768874828332, 1484356453419762135149, 140362012941764131605152, 1712946060974682764958369]