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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”).

A197926 as a simple table

na(n)
11
22
34
410
518
6142
7202
8282
9528
10812
111240
121280
131372
141454
151488
161666

[1,2,4,10,18,142,202,282,528,812,1240,1280,1372,
 1454,1488,1666]