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A207915 as a simple table

n a(n)
1 13
2 169
3 665
4 4181
5 21145
6 117835
7 628945
8 3426491
9 18496249
10 100245749
11 542220837
12 2935363929
13 15884981697
14 85980809657
15 465353448013
16 2518713741947
17 13632152020691
18 73782337553115
19 399336601092133
20 2161360508723247

[13,169,665,4181,21145,117835,628945,3426491,
 18496249,100245749,542220837,2935363929,
 15884981697,85980809657,465353448013,
 2518713741947,13632152020691,73782337553115,
 399336601092133,2161360508723247]

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Last modified June 29 20:36 EDT 2022. Contains 354913 sequences. (Running on oeis4.)