login

A197975 as a simple table

na(n)
13
220
3254
44633
5110408
63243618
7113177496
84570858599
9209655304353
1010763674952098
11611433842280388
1238071427445729200
132578294348444597267
14188670154792420320214
1514834716200104606205407
161247263229999781126495328
17111661618863544248806155259

[3,20,254,4633,110408,3243618,113177496,
 4570858599,209655304353,10763674952098,
 611433842280388,38071427445729200,
 2578294348444597267,188670154792420320214,
 14834716200104606205407,1247263229999781126495328,
 111661618863544248806155259]