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A030781 as a simple table

na(n)
13
26
37
48
59
610
712
815
918
1021
1124
1227
1330
1432
1534
1637
1741
1844
1950
2054
2158
2262
2365
2468
2572
2678
2782
2885
2990
3096
31100
32106
33110
34113
35117
36123
37128
38134
39138
40140
41145
42149
43155
44161
45167
46170
47174
48179
49183
50190
51197
52202
53208
54214
55219
56226
57231
58235
59241

[3,6,7,8,9,10,12,15,18,21,24,27,30,32,34,37,41,44,
 50,54,58,62,65,68,72,78,82,85,90,96,100,106,110,
 113,117,123,128,134,138,140,145,149,155,161,167,
 170,174,179,183,190,197,202,208,214,219,226,231,
 235,241]