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A309339 as a simple table

na(n)
13
20
33
43
55
60
73
80
93
100
119
123
133
140
155
163
175
180
193
205
213
220
235
240
253
260
273
283
2911
300
313
320
335
340
357
363
373
380
393
400
417
420
433
449
455
460
475
483
493
500

[3,0,3,3,5,0,3,0,3,0,9,3,3,0,5,3,5,0,3,5,3,0,5,0,
 3,0,3,3,11,0,3,0,5,0,7,3,3,0,3,0,7,0,3,9,5,0,5,3,
 3,0]