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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.

A348269 A 5 X 5 pandiagonal magic square read by rows: the entries have digits which are only 0's and 1's and form a magic square in any base b >= 2.

Table of values

n a(n)
1 11
2 1100
3 110000
4 11000000
5 1100000000
6 10010000
7 1001000000
8 100000001
9 110
10 101000
11 100000100
12 100010
13 10001000
14 1000010000
15 1000001
16 1000001000
17 10001
18 1000100
19 100100000
20 10000010
21 1100000
22 110000000
23 1000000010
24 1001
25 10100

List of values

[11, 1100, 110000, 11000000, 1100000000, 10010000, 1001000000, 100000001, 110, 101000, 100000100, 100010, 10001000, 1000010000, 1000001, 1000001000, 10001, 1000100, 100100000, 10000010, 1100000, 110000000, 1000000010, 1001, 10100]

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

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