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A188251 as a simple table

na(n)
112
2120
3548
41504
53292
66376
710564
817040
925436
1036808
1149556
1268912
1387804
14113384
15144644
16180912
17216044
18267160
19312404
20377904
21446588
22519976
23590420
24696576
25791164
26898456
271016756
281159280
291278636
301460936
311598916
321784224

[12,120,548,1504,3292,6376,10564,17040,25436,
 36808,49556,68912,87804,113384,144644,180912,
 216044,267160,312404,377904,446588,519976,590420,
 696576,791164,898456,1016756,1159280,1278636,
 1460936,1598916,1784224]