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A055131 as a simple table

na(n)
015
139
251
387
4111
5123
6159
7183
8219
9267
10291
11303
12327
13339
14411
15447
16471
17519
18543
19579
20591
21687
22699
23723
24771
25807
26831
27843
28879
29939
30951
311011
321047
331059
341119
351167
361191
371203
381227
391263
401299
411347
421371
431383
441527
451563
461623
471671

[15,39,51,87,111,123,159,183,219,267,291,303,327,
 339,411,447,471,519,543,579,591,687,699,723,771,
 807,831,843,879,939,951,1011,1047,1059,1119,1167,
 1191,1203,1227,1263,1299,1347,1371,1383,1527,1563,
 1623,1671]