Number of nX2 1..7 arrays containing at least one of each value, and all equal values connected.
A166760
Number of nX2 1..7 arrays containing at least one of each value, and all equal values connected.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =50400a(4) =1380960a(5) =16803360a(6) =129764880a(7) =740028240a(8) =3386113920a(9) =13088718720a(10) =44246270880a(11) =134067769920a(12) =370807123680a(13) =949269877920
External references
- oeis: A166760