Sixth column of triangle A075497.

A075511

Sixth column of triangle A075497.

Terms

    a(0) =1a(1) =42a(2) =1064a(3) =21168a(4) =365232a(5) =5743584a(6) =84713728a(7) =1193127936a(8) =16239711488a(9) =215394955776

External references