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A273958 as a simple table

n a(n)
1 1
2 2
3 4
4 10
5 30
6 96
7 313
8 1038
9 3512
10 12100
11 42286
12 149440
13 533076
14 1917000
15 6942660
16 25300034
17 92701746
18 341319648
19 1262176462
20 4685724500
21 17457027376
22 65247128392
23 244584468174
24 919319871360
25 3464027857900
26 13082491517336
27 49513139090512
28 187761168576904
29 713325243149880
30 2714644395230080
31 10347465825694361
32 39500936075084958
33 151005816167189208
34 578038682649831252
35 2215461387843704450
36 8501300598574467776
37 32658238309503587964

[1,2,4,10,30,96,313,1038,3512,12100,42286,149440,
 533076,1917000,6942660,25300034,92701746,
 341319648,1262176462,4685724500,17457027376,
 65247128392,244584468174,919319871360,
 3464027857900,13082491517336,49513139090512,
 187761168576904,713325243149880,2714644395230080,
 10347465825694361,39500936075084958,
 151005816167189208,578038682649831252,
 2215461387843704450,8501300598574467776,
 32658238309503587964]

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Last modified September 17 11:15 EDT 2024. Contains 375987 sequences. (Running on oeis4.)