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A106506 as a simple table

na(n)
15
27
316
49
511
633
724
813
939
1015
1156
1232
1317
1451
1585
1619
1772
1857
1940
2095
2121
22120
23105
2423
2588
2669
2748
28115
2925
30161
3175
3227
33104
34175
3556
36135
3729
38208
39189
4087
41168
42145
4331
44120
45203
4693
4764
48261
49155
5033
51240
52217
53192
54279
55165
5635
57136
58231
59105
60320
6172
6237
63272

[5,7,16,9,11,33,24,13,39,15,56,32,17,51,85,19,72,
 57,40,95,21,120,105,23,88,69,48,115,25,161,75,27,
 104,175,56,135,29,208,189,87,168,145,31,120,203,
 93,64,261,155,33,240,217,192,279,165,35,136,231,
 105,320,72,37,272]