Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010101 or 01010101.
A260014
Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010101 or 01010101.
Terms
- a(0) =1744a(1) =6262a(2) =56137a(3) =292422a(4) =1231648a(5) =5674360a(6) =33390411a(7) =166527544a(8) =840032861a(9) =4030790792a(10) =21851751619a(11) =107051545804a(12) =560817409385
External references
- oeis: A260014