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A138723 as a simple table

na(n)
11
23
311
419
537
64
712
820
938
1021
1139
1222
1340
1423
1541
1624
1742
1825
1943
2026
2144
2227
2345
2428
2546
2629
2747
2830
2948
305
3113
3231
3349
346
3514
3632
3750
387
3915
4033
4151
428
4316
4434
4552
469
4717
4835
4953
502
5110
5218
5336
5454

[1,3,11,19,37,4,12,20,38,21,39,22,40,23,41,24,42,
 25,43,26,44,27,45,28,46,29,47,30,48,5,13,31,49,6,
 14,32,50,7,15,33,51,8,16,34,52,9,17,35,53,2,10,18,
 36,54]