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A371605 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 10
5 50
6 230
7 1260
8 9240
9 76440
10 651000
11 6006000
12 62739600
13 719518800
14 8736327600
15 112588476000
16 1558917360000
17 23070967920000
18 360507459312000
19 5925688056288000
20 102619150714080000
21 1869557514945120000
22 35676360727207200000

[1,1,1,2,10,50,230,1260,9240,76440,651000,6006000,
 62739600,719518800,8736327600,112588476000,
 1558917360000,23070967920000,360507459312000,
 5925688056288000,102619150714080000,
 1869557514945120000,35676360727207200000]

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Last modified July 11 07:50 EDT 2024. Contains 374216 sequences. (Running on oeis4.)