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A009006 as a simple table

n a(n)
0 1
1 1
2 0
3 2
4 0
5 16
6 0
7 272
8 0
9 7936
10 0
11 353792
12 0
13 22368256
14 0
15 1903757312
16 0
17 209865342976
18 0
19 29088885112832
20 0
21 4951498053124096
22 0
23 1015423886506852352
24 0
25 246921480190207983616
26 0
27 70251601603943959887872
28 0
29 23119184187809597841473536
30 0

[1,1,0,2,0,16,0,272,0,7936,0,353792,0,22368256,0,
 1903757312,0,209865342976,0,29088885112832,0,
 4951498053124096,0,1015423886506852352,0,
 246921480190207983616,0,70251601603943959887872,0,
 23119184187809597841473536,0]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)