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A200055 as a simple table

n a(n)
1 1
2 12
3 78
4 546
5 3914
6 28554
7 211242
8 1577878
9 11867186
10 89815404
11 682642050
12 5211283212
13 39897460856
14 306446600454
15 2358644800468
16 18199380449274
17 140644480480176
18 1089068472750998
19 8443172123261506
20 65564035662489652

[1,12,78,546,3914,28554,211242,1577878,11867186,
 89815404,682642050,5211283212,39897460856,
 306446600454,2358644800468,18199380449274,
 140644480480176,1089068472750998,8443172123261506,
 65564035662489652]

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Last modified May 13 11:22 EDT 2024. Contains 372504 sequences. (Running on oeis4.)