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A019186 as a simple table

n a(n)
3 0
4 0
5 2
6 8
7 6
8 16
9 58
10 120
11 250
12 672
13 1616
14 3754
15 9534
16 23898
17 59600
18 151961
19 393164
20 1015022
21 2648698
22 6968726
23 18376842
24 48656345
25 129493884
26 345291813
27 922507740
28 2471468426
29 6633836472
30 17830265435
31 48005356190

[0,0,2,8,6,16,58,120,250,672,1616,3754,9534,23898,
 59600,151961,393164,1015022,2648698,6968726,
 18376842,48656345,129493884,345291813,922507740,
 2471468426,6633836472,17830265435,48005356190]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)