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.

A259158 Positive triangular numbers (A000217) that are heptagonal numbers (A000566) divided by 2.

Table of values

n a(n)
1 171
2 355817826
3 739874066553765
4 1538466018777014327028
5 3199027777735470191011289295
6 6651936797966044301302839516949686
7 13831784604089070782667939513452521937961
8 28761287297921206463992005998270360082445758120

List of values

[171, 355817826, 739874066553765, 1538466018777014327028, 3199027777735470191011289295, 6651936797966044301302839516949686, 13831784604089070782667939513452521937961, 28761287297921206463992005998270360082445758120]

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

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