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A148172 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 12
5 27
6 84
7 224
8 700
9 1994
10 6638
11 19089
12 64876
13 198363
14 664004
15 2086517
16 7239154
17 22617762
18 79274478
19 257022722
20 887577052
21 2920427735
22 10343306126
23 33734494280
24 120217932914
25 402661589406
26 1415512649780
27 4785787121528
28 17162415316492
29 57471816051383
30 206980298682640
31 707863228732780

[1,1,2,4,12,27,84,224,700,1994,6638,19089,64876,
 198363,664004,2086517,7239154,22617762,79274478,
 257022722,887577052,2920427735,10343306126,
 33734494280,120217932914,402661589406,
 1415512649780,4785787121528,17162415316492,
 57471816051383,206980298682640,707863228732780]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)