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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”).

A373302 as a simple table

na(n)
11
26
327
4119
5533
62402
710829
848804
9219925
10991044
114465957
1220125051
1390690002
14408678475
151841637299
168299012941
1737398034921
18168527634148
19759439995404
203422282105232
2115421909405056
2269496108849357
23313171930813206
241411253951813003
256359566489040219

[1,6,27,119,533,2402,10829,48804,219925,991044,
 4465957,20125051,90690002,408678475,1841637299,
 8299012941,37398034921,168527634148,759439995404,
 3422282105232,15421909405056,69496108849357,
 313171930813206,1411253951813003,6359566489040219]