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A291051 as a simple table

n a(n)
1 1
2 3
3 2
4 14
5 190
6 6
7 78
8 42
9 30
10 570
11 16770
12 210
13 1102290
14 2730
15 67830
16 43890
17 133707210
18 746130
19 27606810
20 16546530
21 9699690
22 417086670
23 3828438543930
24 8720021310
25 705196562070

[1,3,2,14,190,6,78,42,30,570,16770,210,1102290,
 2730,67830,43890,133707210,746130,27606810,
 16546530,9699690,417086670,3828438543930,
 8720021310,705196562070]

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Last modified March 28 12:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)