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A272791 as a simple table

na(n)
01
14
228
3173
4741
52993
611993
747025
8187164
9745536
102979693
1111916417
1247647817
13190538997
14762243257
153048866261

[1,4,28,173,741,2993,11993,47025,187164,745536,
 2979693,11916417,47647817,190538997,762243257,
 3048866261]