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A003340 as a simple table

na(n)
16
221
336
451
566
681
786
896
9101
10116
11131
12146
13161
14166
15181
16196
17211
18226
19246
20261
21276
22291
23306
24321
25326
26336
27341
28356
29371
30386
31401
32406
33421
34436
35451
36466
37486
38501
39516
40531
41546
42561
43576
44581
45596
46611
47626
48630
49641
50645
51660
52661
53675
54676
55690

[6,21,36,51,66,81,86,96,101,116,131,146,161,166,
 181,196,211,226,246,261,276,291,306,321,326,336,
 341,356,371,386,401,406,421,436,451,466,486,501,
 516,531,546,561,576,581,596,611,626,630,641,645,
 660,661,675,676,690]