Number of partitions of n unlabeled objects of 6 colors.

Terms

a(0) =1a(1) =6a(2) =42a(3) =238a(4) =1260a(5) =6174a(6) =28784a(7) =128046a(8) =548832a(9) =2275372a(10) =9166311a(11) =35987028a(12) =138069505a(13) =518758758a(14) =1912300908a(15) =6926911674a(16) =24688892511a(17) =86685575466a(18) =300137463682