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A172581 Number of 4*n X 20 0..1 arrays with row sums 5 and column sums n 1
11732745024, 2144953893641078315315520, 3502030404249297872766171625530047385600, 15195407946323194013765595656097788013666363361791048000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..10

CROSSREFS

Sequence in context: A204780 A333131 A172587 * A213534 A202361 A015430

Adjacent sequences:  A172578 A172579 A172580 * A172582 A172583 A172584

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified October 26 02:14 EDT 2021. Contains 348256 sequences. (Running on oeis4.)