T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010101.
A260475
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010101.
Terms
- a(0) =34a(1) =49a(2) =49a(3) =103a(4) =92a(5) =103a(6) =205a(7) =213a(8) =213a(9) =205a(10) =414a(11) =471a(12) =658a(13) =471a(14) =414a(15) =840a(16) =1085a(17) =1723a(18) =1723a(19) =1085a(20) =840a(21) =1716a(22) =2562a(23) =4607a(24) =5034a(25) =4607a(26) =2562a(27) =1716a(28) =3477a(29) =5891
External references
- oeis: A260475