Number of nX2 1..7 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in increasing order.
A166818
Number of nX2 1..7 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in increasing order.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =2016a(4) =23485a(5) =139417a(6) =583174a(7) =1954280a(8) =5607754a(9) =14335198a(10) =33495720a(11) =72817584a(12) =149172543a(13) =290727879a(14) =543010494
External references
- oeis: A166818