T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3 or 7 king-move adjacent elements, with upper left element zero.
A304775
T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =8a(5) =4a(6) =8a(7) =21a(8) =21a(9) =8a(10) =16a(11) =49a(12) =27a(13) =49a(14) =16a(15) =32a(16) =120a(17) =67a(18) =67a(19) =120a(20) =32a(21) =64a(22) =293a(23) =139a(24) =172a(25) =139a(26) =293a(27) =64a(28) =128a(29) =719
External references
- oeis: A304775