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A247689 as a simple table

na(n)
14027
28751
319651
421224
522711
624904
726139
828031
928759
1034088
1136807
1240299
1340692
1441015
1542423
1643192
1744004
1845835
1946587
2048052
2149128
2249812
2350739
2450855
2551995
2655247
2755271
2855623
2970244
3072435
3177144
3278708
3381867
3485199
3587503
3687727
3788447
3891471
3991860
4092712
4194420
4295155
4397555
4498795
4599707
4699939

[4027,8751,19651,21224,22711,24904,26139,28031,
 28759,34088,36807,40299,40692,41015,42423,43192,
 44004,45835,46587,48052,49128,49812,50739,50855,
 51995,55247,55271,55623,70244,72435,77144,78708,
 81867,85199,87503,87727,88447,91471,91860,92712,
 94420,95155,97555,98795,99707,99939]