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A297948 as a simple table

n a(n)
1 3
2 174
3 796
4 4258
5 23840
6 134642
7 750733
8 4222383
9 23711537
10 132980654
11 746752625
12 4193871923
13 23544394740
14 132198744673
15 742328077116
16 4168064624507
17 23403479996329
18 131411747457089
19 737875596512806
20 4143166297781819

[3,174,796,4258,23840,134642,750733,4222383,
 23711537,132980654,746752625,4193871923,
 23544394740,132198744673,742328077116,
 4168064624507,23403479996329,131411747457089,
 737875596512806,4143166297781819]

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Last modified January 28 05:27 EST 2022. Contains 350654 sequences. (Running on oeis4.)