Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A222535
Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =16a(4) =29a(5) =78a(6) =236a(7) =638a(8) =1515a(9) =4345a(10) =11927a(11) =32187a(12) =84684a(13) =238656a(14) =646520a(15) =1771466a(16) =4811845a(17) =13396324a(18) =36540256a(19) =100927019a(20) =277135515a(21) =768770834a(22) =2113207392a(23) =5856167133a(24) =16164388090a(25) =44845294779a(26) =123927192659a(27) =344021294163
External references
- oeis: A222535