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.

A380869 Numbers k such that one can make a rectangle from a chain of linked rods of lengths 1, 2, 3, ..., k, with perimeter equal to the total length, and with one side consisting of a single rod.

Table of values

n a(n)
1 8
2 15
3 20
4 24
5 27
6 35
7 39
8 80
9 84
10 104
11 143
12 215
13 220
14 252
15 264
16 351
17 363
18 459
19 476

List of values

[8, 15, 20, 24, 27, 35, 39, 80, 84, 104, 143, 215, 220, 252, 264, 351, 363, 459, 476]

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

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