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.

A258441 9-gonal numbers (A001106) that are the sum of two consecutive 9-gonal numbers.

Table of values

n a(n)
1 24486
2 959892121
3 37629690894906
4 1475159141502204841
5 57829188627539743273926
6 2267019851101653874322234161
7 88871712145057846553640480297546
8 3483948857243537849494160234302156081
9 136577763012789458630812222951472642381766

List of values

[24486, 959892121, 37629690894906, 1475159141502204841, 57829188627539743273926, 2267019851101653874322234161, 88871712145057846553640480297546, 3483948857243537849494160234302156081, 136577763012789458630812222951472642381766]

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

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