Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A222629
Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =10a(4) =22a(5) =49a(6) =121a(7) =316a(8) =779a(9) =1921a(10) =4813a(11) =12224a(12) =30853a(13) =77944a(14) =197609a(15) =502916a(16) =1280453a(17) =3263803a(18) =8331482a(19) =21300797a(20) =54509660a(21) =139622191a(22) =357960169a(23) =918555828a(24) =2358870680a(25) =6061898813a(26) =15588393421a(27) =40111331758a(28) =103272011299a(29) =266030741706
External references
- oeis: A222629