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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”).

A188507 as a simple table

na(n)
1114
212996
3423074
49787958
5288040928
610000092025
7335304991524
810679333746605
9339310586309097
1010918718979436711
11352511901498687057
1211353212589309062333
13365199323625699877767
1411751342219622127826211

[114,12996,423074,9787958,288040928,10000092025,
 335304991524,10679333746605,339310586309097,
 10918718979436711,352511901498687057,
 11353212589309062333,365199323625699877767,
 11751342219622127826211]