1/120 the number of n X 3 arrays of integers in 1..6 with no element or any of its neighbors having the same value.
A180374
1/120 the number of n X 3 arrays of integers in 1..6 with no element or any of its neighbors having the same value.
Terms
- a(0) =1a(1) =21a(2) =156a(3) =1236a(4) =9552a(5) =74568a(6) =579792a(7) =4515312a(8) =35141952a(9) =273573984a(10) =2129509056a(11) =16576843584a(12) =129037857024
External references
- oeis: A180374