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.

A253546 Centered hexagonal numbers (A003215) which are also centered heptagonal numbers (A069099).

Table of values

n a(n)
1 1
2 547
3 368551
4 248402701
5 167423051797
6 112842888508351
7 76055939431576651
8 51261590333994154297
9 34550235829172628419401
10 23286807687272017560521851
11 15695273830985510663163308047
12 10578591275276546914954509101701
13 7129954824262561635168675971238301

List of values

[1, 547, 368551, 248402701, 167423051797, 112842888508351, 76055939431576651, 51261590333994154297, 34550235829172628419401, 23286807687272017560521851, 15695273830985510663163308047, 10578591275276546914954509101701, 7129954824262561635168675971238301]

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

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