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A243494 as a simple table

na(n)
01
12
23
34
45
56
68
710
811
912
1013
1114
1216
1320
1422
1523
1624
1726
1828
1931
2032
2134
2237
2339
2440
2544
2646
2747
2848
2952
3056
3161
3262
3364
3468
3574
3676
3778
3880
3986
4088
4189
4292
4394
4496
45101
46104
47109
48112
49113
50118
51122
52123
53124

[1,2,3,4,5,6,8,10,11,12,13,14,16,20,22,23,24,26,
 28,31,32,34,37,39,40,44,46,47,48,52,56,61,62,64,
 68,74,76,78,80,86,88,89,92,94,96,101,104,109,112,
 113,118,122,123,124]