Row 5 of table A111528.

Terms

a(0) =1a(1) =1a(2) =7a(3) =61a(4) =619a(5) =7045a(6) =87955a(7) =1187845a(8) =17192275a(9) =264940405a(10) =4326439075a(11) =74593075525