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A051940 as a simple table

na(n)
86
915
1025
1136
1248
1361
1475
1590
16106
17123
18141
19160
20180
21201
22223
23246
24270
25295
26321
27348
28376
29405
30435
31466
32498
33531
34565
35600
36636
37673
38711
39750
40790
41831
42873
43916
44960
451005
461051
471098
481146
491195
501245
511296
521348
531401
541455
551510
561566
571623

[6,15,25,36,48,61,75,90,106,123,141,160,180,201,
 223,246,270,295,321,348,376,405,435,466,498,531,
 565,600,636,673,711,750,790,831,873,916,960,1005,
 1051,1098,1146,1195,1245,1296,1348,1401,1455,1510,
 1566,1623]