A269231 a(n) = smallest magic sum of any 3 X 3 semimagic square which contains exactly n cubes.
19, 16, 15, 32, 73, 153, 1520, 5104, 241801435
Offset: 0
Links
- Multimagic Squares, Magic squares of cubes
- The Prime Puzzles and Problems Connection, Puzzle 412
- Arkadiusz Wesolowski, Examples of these semimagic squares
- Index entries for sequences related to magic squares
Extensions
a(8) from Christian Boyer, added by Arkadiusz Wesolowski, Apr 14 2016