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A144483 as a simple table

na(n)
15
20
36
45
56
60
75
83
93
105
110
126
135
146
150
165
173
183
195
200
216
225
236
240
255
263
273
285
290
306
315
326
330
345
353
363
375
380
396
405
416
420
435
443
453
465
470
486
495
506
510
525
533
543

[5,0,6,5,6,0,5,3,3,5,0,6,5,6,0,5,3,3,5,0,6,5,6,0,
 5,3,3,5,0,6,5,6,0,5,3,3,5,0,6,5,6,0,5,3,3,5,0,6,5,
 6,0,5,3,3]