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Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A003054 as a simple table

na(n)
11
21
32
45
514
639
7120
8358
91176
103527
1111622
1236627
13121622
14389560
151301140
164215748

[1,1,2,5,14,39,120,358,1176,3527,11622,36627,
 121622,389560,1301140,4215748]