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.

A131557 Triangular numbers that are the sums of five consecutive triangular numbers.

Table of values

n a(n)
1 55
2 2485
3 17020
4 799480
5 5479705
6 257429395
7 1764447310
8 82891465030
9 568146553435
10 26690794309585
11 182941425758080
12 8594352876220660
13 58906570947547645
14 2767354935348742255
15 18967732903684582930
16 891079694829418784770
17 6107551088415488155135

List of values

[55, 2485, 17020, 799480, 5479705, 257429395, 1764447310, 82891465030, 568146553435, 26690794309585, 182941425758080, 8594352876220660, 58906570947547645, 2767354935348742255, 18967732903684582930, 891079694829418784770, 6107551088415488155135]

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

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