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A206907 as a simple table

na(n)
11
22
34
45
56
69
710
811
913
1014
1116
1218
1319
1420
1522
1624
1725
1827
1928
2029
2132
2233
2334
2436
2537
2639
2741
2842
2943
3045
3146
3248
3350
3451
3552
3654
3756
3857
3959
4060
4161
4264
4365
4466
4568
4669
4771
4873
4974
5075
5177
5279
5380
5482
5583
5684
5786
5888
5989
6091
6192
6293
6396
6497
6598
66100
67101

[1,2,4,5,6,9,10,11,13,14,16,18,19,20,22,24,25,27,
 28,29,32,33,34,36,37,39,41,42,43,45,46,48,50,51,
 52,54,56,57,59,60,61,64,65,66,68,69,71,73,74,75,
 77,79,80,82,83,84,86,88,89,91,92,93,96,97,98,100,
 101]