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A201923 as a simple table

na(n)
01
11
25
344
4581
510256
6227529
76088256
8190930729
96870227200
10279066777613
1112632667642880
12630670054092525
1334426087332253696
142039903110075608977
15130404672744539242496
168946117466489960168913
17655585000075494566199296
1851111210765059412626238741

[1,1,5,44,581,10256,227529,6088256,190930729,
 6870227200,279066777613,12632667642880,
 630670054092525,34426087332253696,
 2039903110075608977,130404672744539242496,
 8946117466489960168913,655585000075494566199296,
 51111210765059412626238741]