Number of (n+1) X (1+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.
A239530
Number of (n+1) X (1+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =13a(4) =47a(5) =128a(6) =405a(7) =1181a(8) =3598a(9) =10705a(10) =32259a(11) =96544a(12) =290009a(13) =869417a(14) =2609238a(15) =7826117a(16) =23480935a(17) =70438624a(18) =211322637a(19) =633956965a(20) =1901888606a(21) =5705637161a(22) =17116957851a(23) =51350798528a(24) =154052516977a(25) =462157354513
External references
- oeis: A239530