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.

A347911 A 4 X 4 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.

Original entry on oeis.org

11111, 10001, 1011, 101, 1001, 111, 11101, 10011, 10101, 11011, 1, 1111, 11, 1101, 10111, 11001
Offset: 1

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Author

Chittaranjan Pardeshi, Oct 07 2021

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The magic square is:
[ 11111 10001 1011 101 ]
[ 1001 111 11101 10011 ]
[ 10101 11011 1 1111 ]
[ 11 1101 10111 11001 ]
The magic sum of any row, column or diagonal is:
1000000 (base 2),
100001 (base 3),
22230 (base 4),
22224 (base 5 and above).

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