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A061354 as a simple table

na(n)
01
12
25
38
465
5163
61957
7685
8109601
998641
109864101
1113563139
12260412269
138463398743
1447395032961
15888656868019
1656874039553217
177437374403113
1817403456103284421
1982666416490601
206613313319248080001
2169439789852104840011

[1,2,5,8,65,163,1957,685,109601,98641,9864101,
 13563139,260412269,8463398743,47395032961,
 888656868019,56874039553217,7437374403113,
 17403456103284421,82666416490601,
 6613313319248080001,69439789852104840011]