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A247673 as a simple table

na(n)
523
647
7359
825
911
1033
119
1217
13182
1411
1515
16304
1712
18160
196105
20444
2122676
22408
235
2460
258
2617888
279
28125526
291616818
30334976
3122584
3219548
3310
34286780
3521540
366698792
37640720
382466378
3975999272
40646104
41573678
42801525615
431116040868
443565308
45127408112

[23,47,359,25,11,33,9,17,182,11,15,304,12,160,
 6105,444,22676,408,5,60,8,17888,9,125526,1616818,
 334976,22584,19548,10,286780,21540,6698792,640720,
 2466378,75999272,646104,573678,801525615,
 1116040868,3565308,127408112]