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A049845 as a simple table

na(n)
21
34
48
515
624
736
851
969
1091
11117
12146
13176
14207
15248
16291
17335
18386
19439
20491
21553
22616
23686
24753
25834
26920
271004
281097
291193
301292
311394
321503
331614
341732
351851
361980
372109
382250
392399
402552
412702
422851
433014
443180

[1,4,8,15,24,36,51,69,91,117,146,176,207,248,291,
 335,386,439,491,553,616,686,753,834,920,1004,1097,
 1193,1292,1394,1503,1614,1732,1851,1980,2109,2250,
 2399,2552,2702,2851,3014,3180]