T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011.
A259723
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011.
Terms
- a(0) =32a(1) =54a(2) =54a(3) =140a(4) =95a(5) =140a(6) =242a(7) =228a(8) =228a(9) =242a(10) =312a(11) =392a(12) =568a(13) =392a(14) =312a(15) =722a(16) =556a(17) =1064a(18) =1064a(19) =556a(20) =722a(21) =1388a(22) =1219a(23) =1244a(24) =2059a(25) =1244a(26) =1219a(27) =1388a(28) =1974a(29) =2330
External references
- oeis: A259723