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A305850 as a simple table

na(n)
01
11
22
37
421
578
6305
71304
86007
929854
10159012
11904986
125479078
1335150263
14238033523
151695554145
1612663533586
1798881246850
18805128085616
196820302066048
2059983405937707
21546690232627480
225154757226832625
2350208266917662433
24504482106565647708

[1,1,2,7,21,78,305,1304,6007,29854,159012,904986,
 5479078,35150263,238033523,1695554145,12663533586,
 98881246850,805128085616,6820302066048,
 59983405937707,546690232627480,5154757226832625,
 50208266917662433,504482106565647708]