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A286275 as a simple table

na(n)
20
30
42
54
63
72
81
93
106
112
123
132
143
151
168
174
180
191
205
211
224
233
240
253
263
270
282
296
3011
311
321
332
347
353
361
377
385
390
402
414
423
431
446
451
468
476
480
494
509
511
527
532
540
551
567
576
5810
590
600
613
627
630
645
656
665
671
681
691
707
710
729
734
742
750
762
774
784
792
801
813
8210
834
841
853
8617
870

[0,0,2,4,3,2,1,3,6,2,3,2,3,1,8,4,0,1,5,1,4,3,0,3,
 3,0,2,6,11,1,1,2,7,3,1,7,5,0,2,4,3,1,6,1,8,6,0,4,
 9,1,7,2,0,1,7,6,10,0,0,3,7,0,5,6,5,1,1,1,7,0,9,4,
 2,0,2,4,4,2,1,3,10,4,1,3,17,0]