Main diagonal of number array A086404.

A086406

Main diagonal of number array A086404.

Terms

    a(0) =1a(1) =2a(2) =11a(3) =84a(4) =857a(5) =10984a(6) =169803a(7) =3076688a(8) =63968273a(9) =1501465248a(10) =39277112843

External references