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A216974 as a simple table

na(n)
10
21
33
49
515
621
745
857
963
1069
1187
1299
13129
14141
15279
16285
17333
18345
19453
20459
21465
22471
23513
24519
25627
26657
27669
28693
29729
30771
31777
32783
33795
34801
35807
36873
37909
38921
39933
40969
41987
421011
431023
441047
451119
461155
471257
481299
491323
501407
511419
521437
531485

[0,1,3,9,15,21,45,57,63,69,87,99,129,141,279,285,
 333,345,453,459,465,471,513,519,627,657,669,693,
 729,771,777,783,795,801,807,873,909,921,933,969,
 987,1011,1023,1047,1119,1155,1257,1299,1323,1407,
 1419,1437,1485]