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.

A353588 Simultaneously fill a square spiral and an infinite square array by antidiagonals with distinct nonnegative integers so that the sum of numbers in any 2 X 2 square equals a square.

Table of values

n a(n)
0 0
1 1
2 2
3 6
4 13
5 17
6 3
7 16
8 32
9 4
10 63
11 375
12 20
13 1628
14 45
15 36
16 43
17 25189
18 138507681
19 3727222924
20 5
21 123772
22 1299458

List of values

[0, 1, 2, 6, 13, 17, 3, 16, 32, 4, 63, 375, 20, 1628, 45, 36, 43, 25189, 138507681, 3727222924, 5, 123772, 1299458]

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

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