Main diagonal of number array A084061.

A084062

Main diagonal of number array A084061.

Terms

    a(0) =1a(1) =1a(2) =6a(3) =54a(4) =656a(5) =10000a(6) =182952a(7) =3899224a(8) =94769152a(9) =2584929024a(10) =78145100000

External references