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A172664 Number of 3*n X n 0..2 arrays with row sums 4 and column sums 12 1
0, 1, 352128, 8365213132981, 2630024635942177123650, 7011583640699581889649892843200, 115401909362364329779895671658357933292000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
CROSSREFS
Sequence in context: A186822 A251246 A237098 * A172676 A172773 A172840
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified April 13 15:06 EDT 2024. Contains 371644 sequences. (Running on oeis4.)