login

A078564 as a simple table

na(n)
11
21
32
46
520
693
7515
83701
932714
10359289
114847830
1280064871
131607606989
1438983675574

[1,1,2,6,20,93,515,3701,32714,359289,4847830,
 80064871,1607606989,38983675574]