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A280628 as a simple table

na(n)
01
11
21
31
41
519
6109
7739
83889
935641
10292681
113753721
1237275121
13500577499
145709311029
1591718242219
161254902705569
1722737318482161
18350061261777361
196983681901945841
20120872805166945441
212676021948941279779
2251564789352080559549
231243547540389481251699
2426284030671328082426449
25686920343453752746986281
2615848108292907342195314841
27446624144083900575607651561

[1,1,1,1,1,19,109,739,3889,35641,292681,3753721,
 37275121,500577499,5709311029,91718242219,
 1254902705569,22737318482161,350061261777361,
 6983681901945841,120872805166945441,
 2676021948941279779,51564789352080559549,
 1243547540389481251699,26284030671328082426449,
 686920343453752746986281,
 15848108292907342195314841,
 446624144083900575607651561]