Integer quotients arising in A063986.

Terms

a(0) =0a(1) =1a(2) =1a(3) =5a(4) =5a(5) =49a(6) =118a(7) =121a(8) =2406a(9) =2698a(10) =4182a(11) =4946a(12) =153627a(13) =3087192a(14) =8203485a(15) =38394376a(16) =487844934a(17) =2822741576a(18) =4140154385a(19) =4397137572a(20) =8583966231