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A330498 as a simple table

n a(n)
0 0
1 1
2 1
3 6
4 24
5 152
6 1230
7 12646
8 141274
9 1730984
10 23920800
11 379364664
12 6766026168
13 131337466608
14 2713274041296
15 59397879195456
16 1386647548658496
17 34745321580075648
18 934708252265232768
19 26835517455387452928
20 815158892950448937984

[0,1,1,6,24,152,1230,12646,141274,1730984,
 23920800,379364664,6766026168,131337466608,
 2713274041296,59397879195456,1386647548658496,
 34745321580075648,934708252265232768,
 26835517455387452928,815158892950448937984]

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)