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A172767 Number of 3*n X n 0..3 arrays with row sums 6 and column sums 18 1
0, 1, 19546975, 80349760089959316, 11279631181377626877359650100, 31270791853997716490787029515342398010161, 1138966845227847811612995810985909503258495428544062880 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
CROSSREFS
Sequence in context: A017395 A017659 A348267 * A122557 A284101 A303448
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified May 23 02:40 EDT 2024. Contains 372758 sequences. (Running on oeis4.)