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A247097 as a simple table

na(n)
22
36
46
56
66
712
818
98
1012
116
126
1318
1424
156
168
1712
186
1912
2030
2110
2218
2314
2412
256
266
276
2830
2918
3024
3136
3220
3312
3418
3530
366
3710
3830
396
4018
4112
4242
436
4430
4530
4612
4716
486
4912
5048
5118
5230
5330
546
556
568
5712
586
5930
6030
6124
6224
636

[2,6,6,6,6,12,18,8,12,6,6,18,24,6,8,12,6,12,30,10,
 18,14,12,6,6,6,30,18,24,36,20,12,18,30,6,10,30,6,
 18,12,42,6,30,30,12,16,6,12,48,18,30,30,6,6,8,12,
 6,30,30,24,24,6]