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.

A254333 Squares (A000290) which are also centered pentagonal numbers (A005891).

Table of values

n a(n)
1 1
2 16
3 1156
4 22801
5 1666681
6 32878756
7 2403352576
8 47411143081
9 3465632747641
10 68366835443776
11 4997440018745476
12 98584929298781641
13 7206305041398228481
14 142159399682007682276
15 10391486872256226723856
16 204993755756525779060081
17 14984516863488437537571601

List of values

[1, 16, 1156, 22801, 1666681, 32878756, 2403352576, 47411143081, 3465632747641, 68366835443776, 4997440018745476, 98584929298781641, 7206305041398228481, 142159399682007682276, 10391486872256226723856, 204993755756525779060081, 14984516863488437537571601]

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

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