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A105465 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 6
6 16
7 47
8 96
9 206
10 406
11 823
12 1626
13 3244
14 6454
15 12798
16 25715
17 51779
18 103315
19 206649
20 412883
21 825395
22 1650179
23 3299610
24 6600347
25 13201348
26 26403834 

[0,0,0,1,6,16,47,96,206,406,823,1626,3244,6454,
 12798,25715,51779,103315,206649,412883,825395,
 1650179,3299610,6600347,13201348,26403834]

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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)