login

A145547 as a simple table

na(n)
11
21
32
44
59
620
748
8115
9286
10719
111841
124762
1312470
1432918
1587628
16234795
17633000
181715435
194671098
2012772707
2135059815
2296567161
23266818396
24739344427

[1,1,2,4,9,20,48,115,286,719,1841,4762,12470,
 32918,87628,234795,633000,1715435,4671098,
 12772707,35059815,96567161,266818396,739344427]