T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 2 neighboring 1s.
A296386
T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 2 neighboring 1s.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =10a(5) =4a(6) =7a(7) =28a(8) =28a(9) =7a(10) =12a(11) =86a(12) =127a(13) =86a(14) =12a(15) =21a(16) =279a(17) =641a(18) =641a(19) =279a(20) =21a(21) =37a(22) =869a(23) =3237a(24) =5389a(25) =3237a(26) =869a(27) =37a(28) =65a(29) =2728
External references
- oeis: A296386