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A305705 as a simple table

na(n)
11
22
33
44
55
67
710
811
913
1014
1117
1219
1323
1426
1529
1631
1737
1841
1943
2046
2147
2251
2353
2458
2559
2661
2762
2867
2969
3071
3173
3274
3379
3483
3589
3692
3794
3897
39101
40103
41106
42107
43109
44113
45122
46123
47127
48131
49137
50139
51141
52142
53149
54151
55157
56158
57163
58167
59173
60179
61181

[1,2,3,4,5,7,10,11,13,14,17,19,23,26,29,31,37,41,
 43,46,47,51,53,58,59,61,62,67,69,71,73,74,79,83,
 89,92,94,97,101,103,106,107,109,113,122,123,127,
 131,137,139,141,142,149,151,157,158,163,167,173,
 179,181]