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A269231 a(n) = smallest magic sum of any 3 X 3 semimagic square which contains exactly n cubes. 5
19, 16, 15, 32, 73, 153, 1520, 5104, 241801435 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..8.

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

CROSSREFS

Cf. A268854, A268855, A268856.

Sequence in context: A106706 A291427 A099939 * A135734 A215021 A215085

Adjacent sequences:  A269228 A269229 A269230 * A269232 A269233 A269234

KEYWORD

nonn,fini,hard,more

AUTHOR

Arkadiusz Wesolowski, Feb 20 2016

EXTENSIONS

a(8) from Christian Boyer, added by Arkadiusz Wesolowski, Apr 14 2016

STATUS

approved

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Last modified August 10 19:52 EDT 2020. Contains 336381 sequences. (Running on oeis4.)