v(n+1)/v(n), where v=A203530.A203532v(n+1)/v(n), where v=A203530.Terms a(0) =10a(1) =168a(2) =3315a(3) =76608a(4) =2661120a(5) =113667840a(6) =4311354600a(7) =178738560000External referencesoeis: A203532