login

A007197 as a simple table

na(n)
11
25
331
4209
51476
610739
779780
8601905
94595485
1035419710
11275109858
122150537435
1316901814190
14133452123796
151057920031536

[1,5,31,209,1476,10739,79780,601905,4595485,
 35419710,275109858,2150537435,16901814190,
 133452123796,1057920031536]