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A274487 as a simple table

na(n)
01
13
23
33
411
53
611
735
8171
935
10235
11867
123115
135283
149835
1521091
1639723
17117155
1827755
1966659
2069931
211315235
22380011
231244259
245245227
2517871267
2622029419
2788654947
2856627499
2986774179
30697945195
311556544611
322252343595
336761263523
344719125611

[1,3,3,3,11,3,11,35,171,35,235,867,3115,5283,9835,
 21091,39723,117155,27755,66659,69931,1315235,
 380011,1244259,5245227,17871267,22029419,88654947,
 56627499,86774179,697945195,1556544611,2252343595,
 6761263523,4719125611]