Number of 9-element subsets that can be chosen from {1,2,...,18*n+9} having element sum 81*n+45.
A204473
Number of 9-element subsets that can be chosen from {1,2,...,18*n+9} having element sum 81*n+45.
Terms
- a(0) =1a(1) =94257a(2) =9853759a(3) =182262067a(4) =1537408202a(5) =8262875230a(6) =33131331832a(7) =108130342498a(8) =302954110225a(9) =754561227653
External references
- oeis: A204473