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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”).

A300604 as a simple table

na(n)
11
274
3230
41397
511752
6110249
71056816
89684995
992435041
10880584819
118391672510
1279962511095
13763064081276
147281278638212
1569463421784079
16662816884120372
176324400190195839
1860344941962776127
19575795288992490918

[1,74,230,1397,11752,110249,1056816,9684995,
 92435041,880584819,8391672510,79962511095,
 763064081276,7281278638212,69463421784079,
 662816884120372,6324400190195839,
 60344941962776127,575795288992490918]