Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010101 or 01010101.
A260007
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010101 or 01010101.
Terms
- a(0) =36a(1) =98a(2) =889a(3) =8450a(4) =87024a(5) =1210568a(6) =33390411a(7) =1002982472a(8) =36725478315
External references
- oeis: A260007