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A248528 as a simple table

na(n)
14
230
364
4106
5140
6166
7234
8276
9310
10336
11344
12370
13404
14446
15480
16506
17514
18540
19574
20650
21676
22744
23786
24820
25846
26854
27880
28914
29956
30990
311016
321024
331050
341160
351186
361194
371220
381254
391296
401330
411356
421364
431390
441424
451466
461534
471560
481636
491670

[4,30,64,106,140,166,234,276,310,336,344,370,404,
 446,480,506,514,540,574,650,676,744,786,820,846,
 854,880,914,956,990,1016,1024,1050,1160,1186,1194,
 1220,1254,1296,1330,1356,1364,1390,1424,1466,1534,
 1560,1636,1670]