login

A207096 as a simple table

na(n)
15
215
345
4140
5441
61382
74322
813511
942238
10132051
11412840
121290698
134035218
1412615643
1539441343
16123308779
17385510576
181205254047
193768086810
2011780485818
2136830320820
22115145720853
23359989724116
241125466066030
253518638952555

[5,15,45,140,441,1382,4322,13511,42238,132051,
 412840,1290698,4035218,12615643,39441343,
 123308779,385510576,1205254047,3768086810,
 11780485818,36830320820,115145720853,359989724116,
 1125466066030,3518638952555]