Number of n X 3 0..3 arrays with no more than floor(n X 3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.
A222611
Number of n X 3 0..3 arrays with no more than floor(n X 3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =65a(4) =181a(5) =3545a(6) =11421a(7) =243955a(8) =829319a(9) =17592855a(10) =61952605a(11) =1284213397a(12) =4662579053a(13) =94370045311a(14) =351914237859
External references
- oeis: A222611