90291600
domain: N
Appears in sequences
- Number of 3n X 2n (0,1)-matrices with every row sum 2 and column sum 3.at n=2A132202
- Number of 3*n X 9 0..1 arrays with row sums 3 and column sums n.at n=1A172568
- Number of 3*n X 6 0..1 arrays with row sums 2 and column sums n.at n=2A172572
- Number of 3*n X 2*n 0..1 arrays with row sums 4 and column sums 6.at n=2A172573