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A003068 as a simple table

na(n)
12
24
37
411
515
619
723
828
933
1038
1143
1248
1353
1458
1563
1668
1773
1879
1985
2091
2197
22103
23109
24115
25121
26127
27133
28139
29145
30151
31157
32163
33169
34175
35181
36187
37193
38199
39205
40211
41217
42224
43231
44238
45245
46252
47259
48266
49273
50280
51287
52294
53301
54308
55315
56322
57329

[2,4,7,11,15,19,23,28,33,38,43,48,53,58,63,68,73,
 79,85,91,97,103,109,115,121,127,133,139,145,151,
 157,163,169,175,181,187,193,199,205,211,217,224,
 231,238,245,252,259,266,273,280,287,294,301,308,
 315,322,329]