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A265431 as a simple table

na(n)
00
11
24
37
412
518
626
734
844
955
1068
1181
1296
13112
14130
15148
16168
17189
18212
19235
20260
21286
22314
23342
24372
25403
26436
27469
28504
29540
30578
31616
32656
33697
34740
35783
36828
37874
38922
39970
401020
411071
421124
431177
441232
451288
461346
471404
481464
491525
501588
511651

[0,1,4,7,12,18,26,34,44,55,68,81,96,112,130,148,
 168,189,212,235,260,286,314,342,372,403,436,469,
 504,540,578,616,656,697,740,783,828,874,922,970,
 1020,1071,1124,1177,1232,1288,1346,1404,1464,1525,
 1588,1651]