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A030045 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 1
5 0
6 0
7 4
8 -4
9 0
10 28
11 -60
12 38
13 228
14 -798
15 1036
16 1528
17 -10064
18 20266
19 -432
20 -116414
21 342376
22 -312232
23 -1128944
24 5218867
25 -8614080
26 -6284630
27 71744552
28 -175745087
29 80875672
30 855493548
31 -3086044908
32 3923353016

[1,0,0,0,1,0,0,4,-4,0,28,-60,38,228,-798,1036,
 1528,-10064,20266,-432,-116414,342376,-312232,
 -1128944,5218867,-8614080,-6284630,71744552,
 -175745087,80875672,855493548,-3086044908,
 3923353016]

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Last modified October 1 17:45 EDT 2020. Contains 337444 sequences. (Running on oeis4.)