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.

A133273 Indices of centered decagonal numbers which are also decagonal numbers.

Table of values

n a(n)
1 1
2 10
3 171
4 3060
5 54901
6 985150
7 17677791
8 317215080
9 5692193641
10 102142270450
11 1832868674451
12 32889493869660
13 590178020979421
14 10590314883759910
15 190035489886698951
16 3410048503076821200
17 61190837565496082641
18 1098025027675852666330
19 19703259660599851911291

List of values

[1, 10, 171, 3060, 54901, 985150, 17677791, 317215080, 5692193641, 102142270450, 1832868674451, 32889493869660, 590178020979421, 10590314883759910, 190035489886698951, 3410048503076821200, 61190837565496082641, 1098025027675852666330, 19703259660599851911291]

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

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