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A081848 as a simple table

na(n)
13
23
33
46
59
612
718
827
942
1063
1193
12141
13210
14315
15474
16711
171065
181599
192397
203597
215394
228091
2312138
2418207
2527309
2640965
2761446
2892169
29138255
30207381
31311073
32466608
33699912
341049868
351574802
362362203
373543306
385314959
397972437
4011958657

[3,3,3,6,9,12,18,27,42,63,93,141,210,315,474,711,
 1065,1599,2397,3597,5394,8091,12138,18207,27309,
 40965,61446,92169,138255,207381,311073,466608,
 699912,1049868,1574802,2362203,3543306,5314959,
 7972437,11958657]