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.

A259167 Positive octagonal numbers (A000567) that are squares (A000290) divided by 2.

Table of values

n a(n)
1 8
2 78408
3 752875208
4 7229107670408
5 69413891098384008
6 666512175097575576008
7 6399849835873029582446408
8 61451357457540654953074835208
9 590055927907455532986394985222408
10 5665716958316030570194709695030728008
11 54402213643694597627554069505290065112008

List of values

[8, 78408, 752875208, 7229107670408, 69413891098384008, 666512175097575576008, 6399849835873029582446408, 61451357457540654953074835208, 590055927907455532986394985222408, 5665716958316030570194709695030728008, 54402213643694597627554069505290065112008]

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

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