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A142742 as a simple table

na(n)
1251
2487
31549
41667
52729
63083
73319
83673
94027
105443
116151
126269
136977
147213
157331
168039
178629
188747
199337
2010163
2110399
2210753
2311579
2411933
2512641
2614057
2714293
2814411
2915473
3016063
3116417
3216889
3317597
3418541
3519013
3619249
3719603
3821019
3921491
4021727

[251,487,1549,1667,2729,3083,3319,3673,4027,5443,
 6151,6269,6977,7213,7331,8039,8629,8747,9337,
 10163,10399,10753,11579,11933,12641,14057,14293,
 14411,15473,16063,16417,16889,17597,18541,19013,
 19249,19603,21019,21491,21727]