124467840
domain: N
Appears in sequences
- a(n) = (4n^2+2n+1) * n!.at n=9A082035
- Number of edges in the n^2 X n^2 Sudoku graph.at n=20A182866
- Number of (n+2)X7 binary arrays avoiding patterns 001 and 011 in rows and columns.at n=8A202097
- Number of (n+1)X(6+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.at n=9A250430