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.

A259165 Positive heptagonal numbers (A000566) that are pentagonal numbers (A000326) divided by 2.

Table of values

n a(n)
1 540
2 125482435
3 29152330292086
4 6772727677992549813
5 1573453639577432827392256
6 365547896447135621647431177175
7 84924818396817988252797073116286650
8 19729903659220000770419185998874515952681
9 4583690677832384200588508141377728222042497188

List of values

[540, 125482435, 29152330292086, 6772727677992549813, 1573453639577432827392256, 365547896447135621647431177175, 84924818396817988252797073116286650, 19729903659220000770419185998874515952681, 4583690677832384200588508141377728222042497188]

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

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