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A306683 as a simple table

na(n)
13
25
37
410
512
614
716
818
921
1023
1125
1228
1330
1432
1534
1636
1739
1841
1943
2045
2147
2250
2352
2454
2557
2659
2761
2863
2965
3068
3170
3272
3375
3477
3579
3681
3783
3886
3988
4090
4192
4294
4397
4499
45101
46104
47106
48108
49110
50112
51115
52117
53119
54121
55123
56126
57128
58130
59133
60135
61137
62139
63141
64144

[3,5,7,10,12,14,16,18,21,23,25,28,30,32,34,36,39,
 41,43,45,47,50,52,54,57,59,61,63,65,68,70,72,75,
 77,79,81,83,86,88,90,92,94,97,99,101,104,106,108,
 110,112,115,117,119,121,123,126,128,130,133,135,
 137,139,141,144]