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A013306 as a simple table

n a(n)
1 1
2 0
3 0
4 -1
5 0
6 -1
7 -1
8 -344
9 -2
10 -7733
11 -4873
12 -10514857
13 -3449
14 -738707
15 -71666467
16 -129310473049
17 -35839
18 -19576627
19 -45715711199
20 -866367643482931
21 -572765895007711
22 -274989109970083277
23 -266112669025361017

[1,0,0,-1,0,-1,-1,-344,-2,-7733,-4873,-10514857,
 -3449,-738707,-71666467,-129310473049,-35839,
 -19576627,-45715711199,-866367643482931,
 -572765895007711,-274989109970083277,
 -266112669025361017]

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Last modified May 23 04:06 EDT 2022. Contains 353959 sequences. (Running on oeis4.)