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A157375 as a simple table

na(n)
11520
27743
318768
434595
555224
680655
7110888
8145923
9185760
10230399
11279840
12334083
13393128
14456975
15525624
16599075
17677328
18760383
19848240
20940899
211038360
221140623
231247688
241359555
251476224
261597695
271723968
281855043
291990920

[1520,7743,18768,34595,55224,80655,110888,145923,
 185760,230399,279840,334083,393128,456975,525624,
 599075,677328,760383,848240,940899,1038360,
 1140623,1247688,1359555,1476224,1597695,1723968,
 1855043,1990920]