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A001893 as a simple table

na(n)
31
43
59
629
798
8343
91230
104489
1116599
1261997
13233389
14884170
153366951
1612876702
1749424984
18190297064
19734644291
202842707951
2111022366544
2242815701060
23166583279325
24649063995030
252532267577126
269891097066760
2738676401680776
28151381995733542
29593053313030007

[1,3,9,29,98,343,1230,4489,16599,61997,233389,
 884170,3366951,12876702,49424984,190297064,
 734644291,2842707951,11022366544,42815701060,
 166583279325,649063995030,2532267577126,
 9891097066760,38676401680776,151381995733542,
 593053313030007]