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A099743 as a simple table

n a(n)
1 0
2 0
3 2
4 15
5 75
6 313
7 1179
8 4161
9 14051
10 45993
11 147195
12 463345
13 1440723
14 4438905
15 13582955
16 41350977
17 125404611
18 379228489
19 1144370139
20 3447856017
21 10375942835
22 31198607385
23 93749962827
24 281584384225
25 845476670115
26 2537990291433
27 7617326317499

[0,0,2,15,75,313,1179,4161,14051,45993,147195,
 463345,1440723,4438905,13582955,41350977,
 125404611,379228489,1144370139,3447856017,
 10375942835,31198607385,93749962827,281584384225,
 845476670115,2537990291433,7617326317499]

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Last modified April 16 10:37 EDT 2024. Contains 371709 sequences. (Running on oeis4.)