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A243754 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 1
5 9
6 1
7 127
8 323
9 1515
10 4191
11 10455
12 20705
13 93802
14 113634
15 3219205
16 10626023
17 45980364
18 139604903
19 555857157
20 1334821448
21 7577098816
22 20676558270
23 61994003643
24 193904367362
25 800928670232
26 2374027931492
27 12506574770693
28 29311991924792

[1,0,0,1,1,9,1,127,323,1515,4191,10455,20705,
 93802,113634,3219205,10626023,45980364,139604903,
 555857157,1334821448,7577098816,20676558270,
 61994003643,193904367362,800928670232,
 2374027931492,12506574770693,29311991924792]

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Last modified September 14 06:54 EDT 2024. Contains 375920 sequences. (Running on oeis4.)