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A156039 as a simple table

na(n)
01
11
24
37
411
517
626
735
848
963
1081
11102
12127
13154
14187
15223
16263
17308
18359
19413
20474
21540
22612
23690
24775
25865
26964
271069
281181
291301
301430
311565
321710
331863
342025
352196
362377
372566
382767
392977
403197
413428
423671
433923
444188
454464
464752
475052
485365
495689

[1,1,4,7,11,17,26,35,48,63,81,102,127,154,187,223,
 263,308,359,413,474,540,612,690,775,865,964,1069,
 1181,1301,1430,1565,1710,1863,2025,2196,2377,2566,
 2767,2977,3197,3428,3671,3923,4188,4464,4752,5052,
 5365,5689]