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A236895 as a simple table

n a(n)
1 81
2 339
3 1426
4 6545
5 30727
6 148966
7 734805
8 3679063
9 18601074
10 94728601
11 484797943
12 2489729974
13 12816761181
14 66088527271
15 341168095114
16 1762603785057
17 9111229406855
18 47115466594414
19 243704127371685
20 1260784775294295

[81,339,1426,6545,30727,148966,734805,3679063,
 18601074,94728601,484797943,2489729974,
 12816761181,66088527271,341168095114,
 1762603785057,9111229406855,47115466594414,
 243704127371685,1260784775294295]

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Last modified August 19 16:39 EDT 2022. Contains 356229 sequences. (Running on oeis4.)