Square array of lambda(k,n), where lambda is defined in A055203. Number of ways of placing n identifiable positive intervals with a total of exactly k starting and/or finishing points.
A059117
Square array of lambda(k,n), where lambda is defined in A055203. Number of ways of placing n identifiable positive intervals with a total of exactly k starting and/or finishing points.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =0a(9) =0a(10) =0a(11) =0a(12) =1a(13) =0a(14) =0a(15) =0a(16) =0a(17) =6a(18) =1a(19) =0a(20) =0a(21) =0a(22) =0a(23) =6a(24) =24a(25) =1a(26) =0a(27) =0a(28) =0a(29) =0
External references
- oeis: A059117