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A120579 as a simple table

na(n)
15
21
32
43
56
617
734
84
968
107
1110
1214
1320
1428
1535
1670
17140
188
1916
2029
2158
22116
23232
24464
2519
2673
271387
281433
292866
307165
3114330
325732
3328660
3411
3522
3644
3715763
3831526
3963052
4038
4155
4283
4395
44110
45166
46190
47209
48415
49418
50830
51913
521045
531577
541826
552090
563154
574565

[5,1,2,3,6,17,34,4,68,7,10,14,20,28,35,70,140,8,
 16,29,58,116,232,464,19,73,1387,1433,2866,7165,
 14330,5732,28660,11,22,44,15763,31526,63052,38,55,
 83,95,110,166,190,209,415,418,830,913,1045,1577,
 1826,2090,3154,4565]