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A177549 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 24
5 120
6 720
7 4969
8 39184
9 347544
10 3424320
11 37150741
12 439774085
13 5639099103
14 77873192126
15 1152123776419
16 18181366630226
17 304851804959519
18 5412206888619242
19 101424438933572112
20 2000731009697485843
21 41440364401733715980
22 899211137893661967405

[1,1,2,6,24,120,720,4969,39184,347544,3424320,
 37150741,439774085,5639099103,77873192126,
 1152123776419,18181366630226,304851804959519,
 5412206888619242,101424438933572112,
 2000731009697485843,41440364401733715980,
 899211137893661967405]

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