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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A172789 Number of 5*n X 5 0..3 arrays with row sums 3 and column sums 3*n 1 153040, 2217051589200, 53461314050652508000, 1605078294448526381158693200, 54474595447150914468834015421847040, 1999627385492230281454043722065265134189600 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 LINKS R. H. Hardin, Table of n, a(n) for n=1..19 CROSSREFS Sequence in context: A233392 A233947 A172732 * A248594 A339528 A234553 Adjacent sequences: A172786 A172787 A172788 * A172790 A172791 A172792 KEYWORD nonn AUTHOR R. H. Hardin Feb 06 2010 STATUS approved

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Last modified August 18 17:05 EDT 2024. Contains 375269 sequences. (Running on oeis4.)