a(n) = A060178(n) - A060015(n).

Terms

a(0) =-1a(1) =1a(2) =-1a(3) =5a(4) =49a(5) =449a(6) =6131a(7) =25129a(8) =257825a(9) =2797409a(10) =97602559a(11) =1520338841a(12) =25975583789a(13) =245725626145a(14) =959689963259