19499227828
domain: N
Appears in sequences
- Number of partitions of floor(n^2/2) with at most n parts and maximal height n.at n=22A029895
- Number of partitions of 2n^2 whose Ferrers-plot fits within a 2n X 2n box; number of ways to cut a 2n X 2n chessboard into two equal-area pieces along a non-descending line from lower left to upper right.at n=11A063074
- Number of n X n 0..1 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=21A201499