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.

A165518 Perfect squares (A000290) that can be expressed as the sum of four consecutive triangular numbers (A000217).

Table of values

n a(n)
1 4
2 100
3 3364
4 114244
5 3880900
6 131836324
7 4478554084
8 152139002500
9 5168247530884
10 175568277047524
11 5964153172084900
12 202605639573839044
13 6882627592338442564
14 233806732499933208100
15 7942546277405390632804
16 269812766699283348307204
17 9165691521498228451812100
18 311363698964240484013304164

List of values

[4, 100, 3364, 114244, 3880900, 131836324, 4478554084, 152139002500, 5168247530884, 175568277047524, 5964153172084900, 202605639573839044, 6882627592338442564, 233806732499933208100, 7942546277405390632804, 269812766699283348307204, 9165691521498228451812100, 311363698964240484013304164]

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

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