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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”).

A296035 as a simple table

na(n)
11
221
370
4204
5997
64102
715399
863267
9258493
101030120
114156150
1216818617
1367740232
14273149847
151102534609
164447180671
1717938365350
1872372158734
19291962906495
201177806200038
214751540115373
2219168723999639
2377330236093551

[1,21,70,204,997,4102,15399,63267,258493,1030120,
 4156150,16818617,67740232,273149847,1102534609,
 4447180671,17938365350,72372158734,291962906495,
 1177806200038,4751540115373,19168723999639,
 77330236093551]