Number of nX3 0..2 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
A222568
Number of nX3 0..2 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =1a(1) =5a(2) =11a(3) =120a(4) =500a(5) =5210a(6) =20889a(7) =229894a(8) =913405a(9) =10427244a(10) =40896923a(11) =479942958a(12) =1866795781a(13) =22316526370a(14) =86377362833
External references
- oeis: A222568