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A063376 as a simple table

n a(n)
-1 1
0 2
1 6
2 20
3 72
4 272
5 1056
6 4160
7 16512
8 65792
9 262656
10 1049600
11 4196352
12 16781312
13 67117056
14 268451840
15 1073774592
16 4295032832
17 17180000256
18 68719738880
19 274878431232
20 1099512676352
21 4398048608256
22 17592190238720
23 70368752566272

[1,2,6,20,72,272,1056,4160,16512,65792,262656,
 1049600,4196352,16781312,67117056,268451840,
 1073774592,4295032832,17180000256,68719738880,
 274878431232,1099512676352,4398048608256,
 17592190238720,70368752566272]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)