Number of 3Xn 0..1 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A223014
Number of 3Xn 0..1 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =4a(1) =10a(2) =24a(3) =117a(4) =284a(5) =1673a(6) =4429a(7) =26552a(8) =72934a(9) =442065a(10) =1235006a(11) =7532763a(12) =21256771a(13) =130255369a(14) =370176224a(15) =2276294040a(16) =6503070384a(17) =40098304454a(18) =115024311048a(19) =710794645074
External references
- oeis: A223014