Number of n X 4 0..2 arrays with no element equal to any value at offset (-1,-2) (0,-1) or (-1,0) and new values introduced in order 0..2.
A274745
Number of n X 4 0..2 arrays with no element equal to any value at offset (-1,-2) (0,-1) or (-1,0) and new values introduced in order 0..2.
Terms
- a(0) =4a(1) =22a(2) =133a(3) =813a(4) =4967a(5) =30349a(6) =185435a(7) =1133025a(8) =6922887a(9) =42299477a(10) =258453699a(11) =1579175897a(12) =9648910127a(13) =58955729261a(14) =360224933899
External references
- oeis: A274745