T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011.
A261553
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011.
Terms
- a(0) =48a(1) =80a(2) =80a(3) =170a(4) =132a(5) =170a(6) =336a(7) =269a(8) =269a(9) =336a(10) =652a(11) =484a(12) =516a(13) =484a(14) =652a(15) =1293a(16) =871a(17) =754a(18) =754a(19) =871a(20) =1293a(21) =2588a(22) =1702a(23) =1210a(24) =769a(25) =1210a(26) =1702a(27) =2588a(28) =5100a(29) =3230
External references
- oeis: A261553