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A277255 as a simple table

na(n)
20
313
40
50
69
70
80
913
100
1115
120
139
140
150
1611
170
1817
1913
2011
217
225
233
242
250
2611
277
285
293
302
317
325
333
342
3515
360
379
380
397
405
413
422
437
445
453
462
472
489
490
507
515
523
532
540
550
5611
570
587
595
603
612
622
637
645
653
662
673
682
697
705
713
722
7311
747
755
763
772
783
792
802
813
822
8311
847

[0,13,0,0,9,0,0,13,0,15,0,9,0,0,11,0,17,13,11,7,5,
 3,2,0,11,7,5,3,2,7,5,3,2,15,0,9,0,7,5,3,2,7,5,3,2,
 2,9,0,7,5,3,2,0,0,11,0,7,5,3,2,2,7,5,3,2,3,2,7,5,
 3,2,11,7,5,3,2,3,2,2,3,2,11,7]