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A172803
Number of n X n 0..4 arrays with row sums 15 and column sums 15
0
0, 0, 0, 24, 21107931, 148699584483880, 4778708254823045056395, 644431545036931434768794630976, 332434916001875361804441620924628744480, 597860889495439071046769406191836215339420282624
OFFSET
1,4
CROSSREFS
Sequence in context: A294326 A255322 A319900 * A141643 A275026 A297424
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved