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.

A137878 Perfect squares among 17-gonal numbers A051869(k) = k*(15*k - 13)/2.

Table of values

n a(n)
1 1
2 17689
3 378225
4 4109707449
5 87870152041
6 954775454112481
7 20414169462254569
8 221815343046210267025
9 4742660677722035990769
10 51532584126226886201833161
11 1101824413949324675985344641
12 11972153009151467313136073526409
13 255978051492792346696545201859225

List of values

[1, 17689, 378225, 4109707449, 87870152041, 954775454112481, 20414169462254569, 221815343046210267025, 4742660677722035990769, 51532584126226886201833161, 1101824413949324675985344641, 11972153009151467313136073526409, 255978051492792346696545201859225]

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

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