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A084169 as a simple table

n a(n)
0 0
1 1
2 2
3 15
4 60
5 319
6 1470
7 7267
8 34680
9 168435
10 810898
11 3921103
12 18918900
13 91381991
14 441150502
15 2130258075
16 10285325040
17 49663079099
18 239791814010
19 1157823924167
20 5590452446700
21 26993130847215
22 130334271942158

[0,1,2,15,60,319,1470,7267,34680,168435,810898,
 3921103,18918900,91381991,441150502,2130258075,
 10285325040,49663079099,239791814010,
 1157823924167,5590452446700,26993130847215,
 130334271942158]

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Last modified June 4 03:29 EDT 2024. Contains 373089 sequences. (Running on oeis4.)