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A180746 as a simple table

na(n)
11
23
36
410
516
623
731
840
951
1063
1177
1293
13111
14130
15151
16173
17196
18220
19247
20275
21306
22338
23371
24407
25445
26487
27530
28574
29620
30667
31715
32764
33818
34874
35931
36990
371052
381115
391179
401245
411312
421381
431452
441524
451600
461677
471756
481837
491920
502004
512090
522178

[1,3,6,10,16,23,31,40,51,63,77,93,111,130,151,173,
 196,220,247,275,306,338,371,407,445,487,530,574,
 620,667,715,764,818,874,931,990,1052,1115,1179,
 1245,1312,1381,1452,1524,1600,1677,1756,1837,1920,
 2004,2090,2178]