48885

Appears in sequences

• a(n) is the number of permutations of length n that avoid the pattern 231 and the mesh pattern (12, 281) or the same sequence for the mesh patterns (12, 313), (12, 345), (12, 377), (12, 401), (12, 403), (12, 465), (12, 467).at n=11A289449
• Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=11A299092