Number of subsets of {1,...,n} containing n and having at least one set partition into 9 blocks with equal element sum.
A248118
Number of subsets of {1,...,n} containing n and having at least one set partition into 9 blocks with equal element sum.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =26a(4) =111a(5) =280a(6) =980a(7) =2599a(8) =8292a(9) =22644a(10) =67300
External references
- oeis: A248118