Trajectory of 37 under map x -> A002487(x)*A002487(x+1).

Terms

a(0) =37a(1) =77a(2) =170a(3) =714a(4) =3450a(5) =10414a(6) =68145a(7) =303610a(8) =721305a(9) =1815066a(10) =17782782a(11) =4598150a(12) =68178460a(13) =133118649a(14) =585506070a(15) =20663527908a(16) =777507763200a(17) =264506067126