Number of (n+1)X6 0..3 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
A184091
Number of (n+1)X6 0..3 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
Terms
- a(0) =4434a(1) =9945a(2) =235003a(3) =4086234a(4) =91203410a(5) =1530840869a(6) =25951449861a(7) =378836704735
External references
- oeis: A184091