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A007328 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 15
7 75
8 310
9 1060
10 3281
11 9564
12 26719
13 72239
14 191569
15 500797
16 1299925
17 3362473
18 8697198
19 22513878
20 58352126
21 151267141 

[0,0,0,0,0,15,75,310,1060,3281,9564,26719,72239,
 191569,500797,1299925,3362473,8697198,22513878,
 58352126,151267141]

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Last modified April 16 03:28 EDT 2024. Contains 371696 sequences. (Running on oeis4.)