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.

A254138 Pentagonal numbers (A000326) which are also centered hexagonal numbers (A003215).

Table of values

n a(n)
1 1
2 7957
3 1185037
4 10596309577
5 1578130224697
6 14111253811878301
7 2101618114050816901
8 18792154258821103289617
9 2798754265133491448134897
10 25025774916617575492416996517
11 3727140237435880812247465267837
12 33327174817289665775049786996211801

List of values

[1, 7957, 1185037, 10596309577, 1578130224697, 14111253811878301, 2101618114050816901, 18792154258821103289617, 2798754265133491448134897, 25025774916617575492416996517, 3727140237435880812247465267837, 33327174817289665775049786996211801]

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

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