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A085567 as a simple table

n a(n)
1 1
2 4
3 15
4 42
5 121
6 336
7 930
8 2548
9 6937
10 0
11 51322
12 0
13 379097
14 0
15 2801205
16 0
17 20698345
18 56264090
19 152941920
20 0
21 0
22 0
23 8350344420
24 0
25 61701166395
26 0
27 455913379395
28 1239301050694
29 3368769533660
30 0
31 24892027072619
32 0
33 183928584450999
34 0
35 0
36 0

[1,4,15,42,121,336,930,2548,6937,0,51322,0,379097,
 0,2801205,0,20698345,56264090,152941920,0,0,0,
 8350344420,0,61701166395,0,455913379395,
 1239301050694,3368769533660,0,24892027072619,0,
 183928584450999,0,0,0]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)