Number of nX6 0..1 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor.
A201351
Number of nX6 0..1 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor.
Terms
- a(0) =5a(1) =36a(2) =273a(3) =2732a(4) =29540a(5) =310036a(6) =3030673a(7) =27104947a(8) =220732437a(9) =1641106829a(10) =11206232481a(11) =70771398891a(12) =416197943012
External references
- oeis: A201351