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

A173235

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

Terms

    a(0) =1a(1) =3a(2) =11a(3) =67a(4) =629a(5) =7781a(6) =117655a(7) =2097159a(8) =43046729a(9) =1000000009a(10) =25937424611a(11) =743008370699

External references