A172718 Number of 9*n X n 0..2 arrays with row sums 2 and column sums 18

1, 44152809, 12331175198408791725, 1237527402223677679598899948925700, 10500268455366221173591541192738752806765261187500, 3138480844349933121860864061245246387668619696538799391771830312500

Offset

1,2

Links

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

Crossrefs

Sequence in context: A017636 A139029 A206326 * A270611 A049360 A130913

Adjacent sequences: A172715 A172716 A172717 * A172719 A172720 A172721

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved