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.

A253514 Centered heptagonal numbers (A069099) which are also centered octagonal numbers (A016754).

Table of values

n a(n)
1 1
2 841
3 755161
4 678133681
5 608963290321
6 546848356574521
7 491069215240629481
8 440979608437728699361
9 395999197307865131396641
10 355606838202854450265484201
11 319334544706965988473273415801
12 286762065540017254794549261905041

List of values

[1, 841, 755161, 678133681, 608963290321, 546848356574521, 491069215240629481, 440979608437728699361, 395999197307865131396641, 355606838202854450265484201, 319334544706965988473273415801, 286762065540017254794549261905041]

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

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