a(n) = A047848(10, n).

Terms

a(0) =1a(1) =2a(2) =15a(3) =184a(4) =2381a(5) =30942a(6) =402235a(7) =5229044a(8) =67977561a(9) =883708282a(10) =11488207655a(11) =149346699504