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A286000 as a simple table

na(n)
11
22
33
42
54
61
75
83
96
102
113
127
134
142
158
163
171
189
195
204
2110
224
233
244
2511
266
272
283
2912
305
315
322
3313
347
354
361
3714
386
393
405
4115
428
436
444
455
4616
477
485
493
504
5117
529
534
542
553
5618
578
587
596
602
6119
6210
636
645
651
6620
679
685
694
706
7121
7211
738
743
755
766
7722
7810
797
807
814
825
8323
8412
856
866
873
884
8924
9011
919
925
932
943
9525
9613
978
984
997
1002

[1,2,3,2,4,1,5,3,6,2,3,7,4,2,8,3,1,9,5,4,10,4,3,4,
 11,6,2,3,12,5,5,2,13,7,4,1,14,6,3,5,15,8,6,4,5,16,
 7,5,3,4,17,9,4,2,3,18,8,7,6,2,19,10,6,5,1,20,9,5,
 4,6,21,11,8,3,5,6,22,10,7,7,4,5,23,12,6,6,3,4,24,
 11,9,5,2,3,25,13,8,4,7,2]