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A200667 as a simple table

n a(n)
1 8
2 36
3 164
4 750
5 3414
6 15504
7 70412
8 319532
9 1449895
10 6578528
11 29850070
12 135443522
13 614568094
14 2788573700
15 12653014693
16 57412388798
17 260505742646
18 1182031264628
19 5363405068469
20 24336170423291
21 110424101519685
22 501043586283665

[8,36,164,750,3414,15504,70412,319532,1449895,
 6578528,29850070,135443522,614568094,2788573700,
 12653014693,57412388798,260505742646,
 1182031264628,5363405068469,24336170423291,
 110424101519685,501043586283665]

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Last modified January 28 23:12 EST 2022. Contains 350670 sequences. (Running on oeis4.)