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A066114 as a simple table

n a(n)
0 1
1 2
2 7
3 30
4 156
5 960
6 6840
7 55440
8 504000
9 5080320
10 56246400
11 678585600
12 8861529600
13 124540416000
14 1874333260800
15 30076510464000
16 512608352256000
17 9247873130496000
18 176065276907520000
19 3527707911856128000
20 74203511249387520000

[1,2,7,30,156,960,6840,55440,504000,5080320,
 56246400,678585600,8861529600,124540416000,
 1874333260800,30076510464000,512608352256000,
 9247873130496000,176065276907520000,
 3527707911856128000,74203511249387520000]

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Last modified July 19 05:20 EDT 2024. Contains 374388 sequences. (Running on oeis4.)