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A247467 as a simple table

na(n)
14
25
37
48
510
611
714
817
935
1041
1150
1259
1389
14136
15164
16205
17224
18283
19763
201034
211253
221630
231820
243199
253800
265080
276124
2817306
2917398
3020768
3134033
3243607

[4,5,7,8,10,11,14,17,35,41,50,59,89,136,164,205,
 224,283,763,1034,1253,1630,1820,3199,3800,5080,
 6124,17306,17398,20768,34033,43607]