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A027658 as a simple table

na(n)
01
14
212
331
471
5147
6280
7498
8837
91342
102068
113081
124459
136293
148688
1511764
1615657
1720520
1826524
1933859
2042735
2153383
2266056
2381030
2498605
25119106
26142884
27170317
28201811
29237801
30278752
31325160
32377553
33436492
34502572
35576423
36658711
37750139
38851448

[1,4,12,31,71,147,280,498,837,1342,2068,3081,4459,
 6293,8688,11764,15657,20520,26524,33859,42735,
 53383,66056,81030,98605,119106,142884,170317,
 201811,237801,278752,325160,377553,436492,502572,
 576423,658711,750139,851448]