Number of partitions of subsets s of {1,...,n}, where all integers belonging to a run of consecutive members of s are required to be in different parts.
A261134
Number of partitions of subsets s of {1,...,n}, where all integers belonging to a run of consecutive members of s are required to be in different parts.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =9a(4) =23a(5) =66a(6) =209a(7) =722a(8) =2697a(9) =10825a(10) =46429a(11) =211799a(12) =1023304a(13) =5217048a(14) =27974458a(15) =157310519a(16) =925326848a(17) =5680341820a(18) =36315837763a(19) =241348819913
External references
- oeis: A261134