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A308661 as a simple table

na(n)
01
12
23
33
42
53
63
75
85
94
105
113
125
135
145
156
163
176
184
193
205
214
227
236
246
256
262
278
288
295
305
315
326
335
346
3510
366
376
388
394
406
418
428
437
443
4510
465
477
489
496
507
513
529
537
542
557
566
579
588
596
608
616
628
639
645
654
667
676
684
695
707
718
725
738
747
756
764
778
7810
796
8010
813
826
839
846
8511
865
879
884
894
908
918
9210
939
947
954
965
9711
987
999
10010

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