44855
domain: N
Appears in sequences
- Number of ways to partition a 3*n X 3 grid into 9 connected equal-area regions.at n=3A167246
- Number of tilings of a 3 X 4n rectangle with 3n tetrominoes of any shape.at n=3A232757
- Number of n X 4 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=11A241352