Maximal Eulerian numbers.

Terms

a(0) =1a(1) =1a(2) =4a(3) =11a(4) =66a(5) =302a(6) =2416a(7) =15619a(8) =156190a(9) =1310354a(10) =15724248a(11) =162512286a(12) =2275172004a(13) =27971176092a(14) =447538817472