Number of nX3 1..3 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 nondecreasing order.
A166801
Number of nX3 1..3 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 nondecreasing order.
Terms
- a(0) =1a(1) =26a(2) =134a(3) =443a(4) =1163a(5) =2636a(6) =5384a(7) =10165a(8) =18037a(9) =30430a(10) =49226a(11) =76847a(12) =116351a(13) =171536a(14) =247052a(15) =348521a(16) =482665a(17) =657442a(18) =882190a(19) =1167779a(20) =1526771
External references
- oeis: A166801