T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00010101 or 01010101.
A261292
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00010101 or 01010101.
Terms
- a(0) =36a(1) =50a(2) =50a(3) =96a(4) =77a(5) =96a(6) =166a(7) =133a(8) =133a(9) =166a(10) =307a(11) =233a(12) =271a(13) =233a(14) =307a(15) =540a(16) =409a(17) =504a(18) =504a(19) =409a(20) =540a(21) =1015a(22) =743a(23) =1086a(24) =1147a(25) =1086a(26) =743a(27) =1015a(28) =1786a(29) =1361
External references
- oeis: A261292