A172558 Number of 2*n X 12 binary arrays with row sums 6 and column sums n.
1, 924, 32496156, 3718394156400, 729833528645228700, 195428754450309450171024, 64051375889927380035549804336, 24197157773366540262083203214418624, 10156485647319165206190655366818708639900, 4623755659802671553551698062433487687144266000, 2245303346871705713053772485416749032101579706759056
Offset: 0
Keywords
Links
- Christoph Koutschan, Table of n, a(n) for n = 0..39 (terms n=1..19 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=6 of A376935.
Extensions
a(0)=1 prepended by Christoph Koutschan, Oct 12 2024