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A003656 as a simple table

na(n)
15
28
312
413
517
621
724
828
929
1033
1137
1241
1344
1453
1556
1657
1761
1869
1973
2076
2177
2288
2389
2492
2593
2697
27101
28109
29113
30124
31129
32133
33137
34141
35149
36152
37157
38161
39172
40173
41177
42181
43184
44188
45193
46197
47201
48209
49213
50217
51233
52236
53237
54241
55248
56249
57253
58268
59269

[5,8,12,13,17,21,24,28,29,33,37,41,44,53,56,57,61,
 69,73,76,77,88,89,92,93,97,101,109,113,124,129,
 133,137,141,149,152,157,161,172,173,177,181,184,
 188,193,197,201,209,213,217,233,236,237,241,248,
 249,253,268,269]