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A020268 as a simple table

na(n)
1451
2529
31247
41541
51765
61807
71991
87421
99773
1011041
1112167
1213333
1314491
1414981
1517611
1618721
1723521
1827511
1931417
2035443
2165305
2265641
2368101
2474089
2579003
2681631
2796727
28102719
29104653
30105271
31109061
32128143
33130561
34145351
35161101

[451,529,1247,1541,1765,1807,1991,7421,9773,11041,
 12167,13333,14491,14981,17611,18721,23521,27511,
 31417,35443,65305,65641,68101,74089,79003,81631,
 96727,102719,104653,105271,109061,128143,130561,
 145351,161101]