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A107382 as a simple table

n a(n)
0 4
1 4
2 16
3 52
4 188
5 684
6 2512
7 9244
8 34052
9 125476
10 462416
11 1704212
12 6280892
13 23148428
14 85314448
15 314430012
16 1158845444
17 4270975556
18 15740867728
19 58013659124
20 213811888828
21 788013108844
22 2904256931152
23 10703766510172

[4,4,16,52,188,684,2512,9244,34052,125476,462416,
 1704212,6280892,23148428,85314448,314430012,
 1158845444,4270975556,15740867728,58013659124,
 213811888828,788013108844,2904256931152,
 10703766510172]

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Last modified October 20 18:25 EDT 2021. Contains 348111 sequences. (Running on oeis4.)