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A047669 as a simple table

na(n)
15
226
395
4276
5681
61486
72947
85416
99357
1015362
1124167
1236668
1353937
1477238
15108043
16148048
17199189
18263658
19343919
20442724
21563129
22708510
23882579
241089400
251333405
261619410
271952631
282338700
292783681
303294086
313876891
324539552
335290021
346136762
357088767

[5,26,95,276,681,1486,2947,5416,9357,15362,24167,
 36668,53937,77238,108043,148048,199189,263658,
 343919,442724,563129,708510,882579,1089400,
 1333405,1619410,1952631,2338700,2783681,3294086,
 3876891,4539552,5290021,6136762,7088767]