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A286991 as a simple table

na(n)
12
25
37
49
511
614
716
818
920
1023
1126
1228
1330
1432
1535
1637
1739
1841
1944
2047
2149
2251
2353
2456
2558
2660
2762
2865
2967
3069
3171
3274
3377
3479
3581
3683
3786
3888
3990
4092
4195
4298
43100
44102
45104
46107
47109
48111
49113
50116
51118
52120
53122
54125
55128
56130
57132
58134
59137
60139
61141

[2,5,7,9,11,14,16,18,20,23,26,28,30,32,35,37,39,
 41,44,47,49,51,53,56,58,60,62,65,67,69,71,74,77,
 79,81,83,86,88,90,92,95,98,100,102,104,107,109,
 111,113,116,118,120,122,125,128,130,132,134,137,
 139,141]