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A299092 as a simple table

n a(n)
1 4
2 13
3 20
4 41
5 101
6 242
7 578
8 1385
9 3368
10 8216
11 20014
12 48885
13 119555
14 292427
15 715827
16 1753080
17 4294103
18 10521578
19 25786055
20 63204089
21 154942532
22 379879302
23 931443529
24 2284029958
25 5601114152
26 13736265904
27 33688529855
28 82624915345

[4,13,20,41,101,242,578,1385,3368,8216,20014,
 48885,119555,292427,715827,1753080,4294103,
 10521578,25786055,63204089,154942532,379879302,
 931443529,2284029958,5601114152,13736265904,
 33688529855,82624915345]

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Last modified January 29 01:19 EST 2022. Contains 350670 sequences. (Running on oeis4.)