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A169863 as a simple table

na(n)
13
26
38
410
513
615
717
819
922
1024
1126
1228
1330
1432
1535
1637
1739
1841
1943
2045
2147
2249
2352
2454
2556
2658
2760
2862
2964
3066
3168
3270
3373
3475
3577
3679
3781
3883
3985
4087
4189
4291
4393
4496
4598
46100
47102
48104
49106
50108
51110
52112
53114
54116
55118
56120
57123

[3,6,8,10,13,15,17,19,22,24,26,28,30,32,35,37,39,
 41,43,45,47,49,52,54,56,58,60,62,64,66,68,70,73,
 75,77,79,81,83,85,87,89,91,93,96,98,100,102,104,
 106,108,110,112,114,116,118,120,123]