Number of nX2 1..7 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.
A166780
Number of nX2 1..7 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =2730a(4) =33586a(5) =206864a(6) =889743a(7) =3049239a(8) =8915556a(9) =23162008a(10) =54891826a(11) =120841344a(12) =250363790a(13) =492955632
External references
- oeis: A166780