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A020493 as a simple table

na(n)
11
23
315
430
535
656
770
878
9105
10140
11168
12190
13210
14248
15264
16357
17420
18570
19616
20630
21714
22744
23812
24840
25910
261045
271240
281485
291672
301848
312090
322214
332436
342580
352730
363080
373135
383339
393596
403720
413956
424064
434180
444522
454674
465016
475049
485278
495396

[1,3,15,30,35,56,70,78,105,140,168,190,210,248,
 264,357,420,570,616,630,714,744,812,840,910,1045,
 1240,1485,1672,1848,2090,2214,2436,2580,2730,3080,
 3135,3339,3596,3720,3956,4064,4180,4522,4674,5016,
 5049,5278,5396]