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.

A253410 Indices of centered pentagonal numbers (A005891) which are also centered octagonal numbers (A016754).

Table of values

n a(n)
1 1
2 96
3 817
4 137712
5 1177393
6 198579888
7 1697799169
8 286352060064
9 2448225223585
10 412919472031680
11 3530339074609681
12 595429592317621776
13 5090746497361935697
14 858609059202538568592
15 7340852918856836664673
16 1238113667940468298287168
17 10585504818245061108522049

List of values

[1, 96, 817, 137712, 1177393, 198579888, 1697799169, 286352060064, 2448225223585, 412919472031680, 3530339074609681, 595429592317621776, 5090746497361935697, 858609059202538568592, 7340852918856836664673, 1238113667940468298287168, 10585504818245061108522049]

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

Content is available under The OEIS End-User License Agreement.