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A270768 as a simple table

n a(n)
5 15
6 82
7 456
8 2623
9 15717
10 98367
11 643401
12 4395802
13 31336468
14 232773295
15 1799100571
16 14446912419
17 120354176611
18 1038736540222
19 9275288018740
20 85580969753059
21 814958928731237
22 8000443830761623
23 80882083469431805
24 841236045441243662
25 8992982601018855952

[15,82,456,2623,15717,98367,643401,4395802,
 31336468,232773295,1799100571,14446912419,
 120354176611,1038736540222,9275288018740,
 85580969753059,814958928731237,8000443830761623,
 80882083469431805,841236045441243662,
 8992982601018855952]

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Last modified February 22 09:17 EST 2020. Contains 332133 sequences. (Running on oeis4.)