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A156096 as a simple table

n a(n)
0 1
1 1
2 4
3 6
4 18
5 32
6 84
7 164
8 400
9 824
10 1928
11 4096
12 9360
13 20240
14 45632
15 99680
16 223008
17 489984
18 1091392
19 2405952
20 5345536
21 11806592
22 26194048
23 57917440
24 128389376
25 284057856
26 629392384
27 1393010176
28 3085685248
29 6830825472
30 15128761344

[1,1,4,6,18,32,84,164,400,824,1928,4096,9360,
 20240,45632,99680,223008,489984,1091392,2405952,
 5345536,11806592,26194048,57917440,128389376,
 284057856,629392384,1393010176,3085685248,
 6830825472,15128761344]

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Last modified June 24 21:50 EDT 2021. Contains 345433 sequences. (Running on oeis4.)