login

A064647 as a simple table

na(n)
12
23
310
4105
5770
615015
7170170
84849845
96760390
103234846615
11200560490130
1272752334655
134680773285034
14284407855036305
15614889782588491410
16465559406817000639
1744715356980330526490
1819548063559901161830545

[2,3,10,105,770,15015,170170,4849845,6760390,
 3234846615,200560490130,72752334655,4680773285034,
 284407855036305,614889782588491410,
 465559406817000639,44715356980330526490,
 19548063559901161830545]