a(n) = A070826(n+1) - 2^(n-1).

A330349

a(n) = A070826(n+1) - 2^(n-1).

Terms

    a(0) =2a(1) =13a(2) =101a(3) =1147a(4) =14999a(5) =255223a(6) =4849781a(7) =111546307a(8) =3234846359a(9) =100280244553

External references