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A000381 as a simple table

na(n)
02
13
24
36
49
514
622
735
856
990
10145
11234
12378
13611
14988
151598
162585
174182
186766

[2,3,4,6,9,14,22,35,56,90,145,234,378,611,988,
 1598,2585,4182,6766]