A172557 Number of 2*n X 10 binary arrays with row sums 5 and column sums n.

1, 252, 1172556, 14367744720, 273957842462220, 6736218287430460752, 195428754450309450171024, 6368685647203261761403856832, 226226183763370772622682749527820, 8588121524476528848476120449733261520, 343706681395653993021794459883981791479056, 14359560914153299239163671050863513324047517632

Offset: 0

Author

R. H. Hardin, Feb 06 2010

Keywords

• nonn

Links

• Christoph Koutschan, Table of n, a(n) for n = 0..50 (terms n=1..24 from R. H. Hardin)
• Robert Dougherty-Bliss, Christoph Koutschan, Natalya Ter-Saakov, and Doron Zeilberger, The (Symbolic and Numeric) Computational Challenges of Counting 0-1 Balanced Matrices, arXiv:2410.07435 [math.CO], 2024.

Crossrefs

Column k=5 of A376935.

Extensions

a(0)=1 prepended by Christoph Koutschan, Oct 12 2024