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A074898 as a simple table

na(n)
11
26
37
49
511
615
717
820
921
1025
1126
1227
1329
1431
1533
1635
1737
1838
1943
2044
2145
2247
2349
2451
2553
2659
2761
2862
2963
3065
3167
3268
3369
3471
3573
3675
3777
3879
3981
4082
4183
4285
4387
4489
4591
4693
4795
4897
4999
50100
51103
52105
53109
54111
55113
56115
57117
58119
59120
60121
61123
62125
63127
64128
65129
66131
67133
68134
69135
70137
71139
72141
73143
74145
75146
76149
77151
78153
79155
80157
81158
82159
83161
84163
85165
86167
87168
88169
89170
90171

[1,6,7,9,11,15,17,20,21,25,26,27,29,31,33,35,37,
 38,43,44,45,47,49,51,53,59,61,62,63,65,67,68,69,
 71,73,75,77,79,81,82,83,85,87,89,91,93,95,97,99,
 100,103,105,109,111,113,115,117,119,120,121,123,
 125,127,128,129,131,133,134,135,137,139,141,143,
 145,146,149,151,153,155,157,158,159,161,163,165,
 167,168,169,170,171]