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A238836 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 0
5 0
6 0
7 4
8 12
9 20
10 28
11 67
12 208
13 484
14 753
15 750
16 679
17 2320
18 10020
19 30548
20 68832
21 108744
22 65229
23 -236055
24 -739289
25 101404
26 7201383
27 26255714
28 43505098
29 -17552274
30 -291420026
31 -674637832
32 27442
33 4426763291
34 12910062402
35 9737827437
36 -49131891078
37 -184470253912
38 -183956055539
39 621518352427
40 2660084937207
41 3075466954690
42 -7500763944932
43 -34822638005931
44 -38841312202313
45 104412348649015
46 448320847685638

[1,0,0,1,0,0,0,4,12,20,28,67,208,484,753,750,679,
 2320,10020,30548,68832,108744,65229,-236055,
 -739289,101404,7201383,26255714,43505098,
 -17552274,-291420026,-674637832,27442,4426763291,
 12910062402,9737827437,-49131891078,-184470253912,
 -183956055539,621518352427,2660084937207,
 3075466954690,-7500763944932,-34822638005931,
 -38841312202313,104412348649015,448320847685638]

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Last modified January 19 04:56 EST 2022. Contains 350464 sequences. (Running on oeis4.)