First subdiagonal of number array A084061.

A084063

First subdiagonal of number array A084061.

Terms

    a(0) =1a(1) =1a(2) =7a(3) =63a(4) =761a(5) =11525a(6) =209539a(7) =4440527a(8) =107374753a(9) =2915352729a(10) =87771145551

External references