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A064728 as a simple table

na(n)
13
25
36
47
511
612
713
817
919
1023
1129
1231
1337
1441
1543
1647
1753
1859
1961
2067
2171
2273
2379
2483
2589
2697
27101
28103
29107
30109
31113
32117
33125
34127
35131
36137
37139
38149
39151
40157
41163
42167
43173
44179
45181
46191
47193
48197
49198
50199
51211
52223
53227
54229
55233
56239
57241
58251
59257

[3,5,6,7,11,12,13,17,19,23,29,31,37,41,43,47,53,
 59,61,67,71,73,79,83,89,97,101,103,107,109,113,
 117,125,127,131,137,139,149,151,157,163,167,173,
 179,181,191,193,197,198,199,211,223,227,229,233,
 239,241,251,257]