Number of nX3 0..4 arrays with no element equal to another at a city block distance of exactly two, and new values 0..4 introduced in row major order.
A222941
Number of nX3 0..4 arrays with no element equal to another at a city block distance of exactly two, and new values 0..4 introduced in row major order.
Terms
- a(0) =3a(1) =33a(2) =420a(3) =5880a(4) =82320a(5) =1152480a(6) =16134720a(7) =225886080a(8) =3162405120a(9) =44273671680a(10) =619831403520
External references
- oeis: A222941