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A051224 as a simple table

n a(n)
1 1
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 1
11 6
12 22
13 239
14 653
15 4089
16 25411
17 166463
18 1115871
19 8062150
20 61984976
21 497236090
22 4261538564
23 38352532487
24 360400504834
25 3518014210402
26 35752764285788

[1,0,0,0,0,0,0,0,0,1,6,22,239,653,4089,25411,
 166463,1115871,8062150,61984976,497236090,
 4261538564,38352532487,360400504834,3518014210402,
 35752764285788]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)