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A371381 as a simple table

na(n)
12
28
313
425
541
652
774
889
9117
10149
11170
12208
13250
14277
15325
16356
17410
18468
19505
20569
21610
22680
23754
24801
25881
26965
271018
281108
291165
301261
311361
321424
331530
341640
351709
361825
371898
382020
392146
402225
412357
422440
432578
442720
452809
462957
473109
483204
493362
503461

[2,8,13,25,41,52,74,89,117,149,170,208,250,277,
 325,356,410,468,505,569,610,680,754,801,881,965,
 1018,1108,1165,1261,1361,1424,1530,1640,1709,1825,
 1898,2020,2146,2225,2357,2440,2578,2720,2809,2957,
 3109,3204,3362,3461]