A172588 Number of 5*n X 20 0..1 arrays with row sums 4 and column sums n

305540235000, 2532230252503738514963235000, 189746842198224628153363826062842999921000000, 37911589613425952733393718264069147678877877626169022024515000

Offset

1,1

Links

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

Crossrefs

Sequence in context: A273936 A287247 A172578 * A172691 A172785 A172847

Adjacent sequences: A172585 A172586 A172587 * A172589 A172590 A172591

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved