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A233009 as a simple table

na(n)
12
23
35
47
513
617
719
88
915
1020
1115
1212
1315
149
1514
1618
174
1820
1921
207
216
225
2312
2419
2512
262
2715
2816
2911
306
316
321
3315
349
357
3621
375
385
393
401
4119
4221
4322
446
456
467
476
483

[2,3,5,7,13,17,19,8,15,20,15,12,15,9,14,18,4,20,
 21,7,6,5,12,19,12,2,15,16,11,6,6,1,15,9,7,21,5,5,
 3,1,19,21,22,6,6,7,6,3]