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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”).

A034890 as a simple table

na(n)
11
22
33
44
56
66
79
811
914
1016
1120
1223
1327
1431
1535
1643
1747
1855
1961
2070
2178
2288
2398
24111
25123

[1,2,3,4,6,6,9,11,14,16,20,23,27,31,35,43,47,55,
 61,70,78,88,98,111,123]