T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001.
A260248
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001.
Terms
- a(0) =48a(1) =99a(2) =99a(3) =256a(4) =213a(5) =256a(6) =635a(7) =551a(8) =551a(9) =635a(10) =1598a(11) =1235a(12) =1476a(13) =1235a(14) =1598a(15) =4027a(16) =3026a(17) =3287a(18) =3287a(19) =3026a(20) =4027a(21) =10110a(22) =7822a(23) =8242a(24) =5733a(25) =8242a(26) =7822a(27) =10110a(28) =25421a(29) =18837
External references
- oeis: A260248