OFFSET
0,1
COMMENTS
a(7) = 8*A268854(7) + 3.
If a(8) exists, and the central element is a square, then a(8) > 10^21. - Arkadiusz Wesolowski, Sep 01 2024
LINKS
Andrew Bremner, On squares of squares II, Acta Arithmetica 99 (2001), pp. 289-308.
Multimagic Squares, Magic squares of squares
The Prime Puzzles and Problems Connection, Problem 63
The Prime Puzzles and Problems Connection, Puzzle 79
Arkadiusz Wesolowski, Examples of these magic squares
Wikipedia, Magic square
CROSSREFS
KEYWORD
nonn,fini,hard,more,changed
AUTHOR
Arkadiusz Wesolowski, Feb 14 2016
STATUS
approved