T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
A223000
T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =7a(5) =5a(6) =10a(7) =45a(8) =51a(9) =14a(10) =24a(11) =272a(12) =534a(13) =391a(14) =41a(15) =72a(16) =1814a(17) =11114a(18) =13655a(19) =2894a(20) =122a(21) =168a(22) =12742a(23) =125907a(24) =486262a(25) =184475a(26) =22491a(27) =365a(28) =664a(29) =87682
External references
- oeis: A223000