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A172554 Number of 2*n X 18 0..1 arrays with row sums 9 and column sums n 1
48620, 842090474940, 89365729945562642000, 21796558191507153941744357500, 8588121524476528848476120449733261520, 4623755659802671553551698062433487687144266000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..12

CROSSREFS

Sequence in context: A177314 A177315 A172613 * A244172 A245794 A048341

Adjacent sequences:  A172551 A172552 A172553 * A172555 A172556 A172557

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified September 26 09:15 EDT 2021. Contains 347664 sequences. (Running on oeis4.)