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A326006 as a simple table

n a(n)
0 1
1 2
2 5
3 10
4 35
5 110
6 484
7 2090
8 10449
9 54526
10 306394
11 1817190
12 11357273
13 74488856
14 510662890
15 3649746072
16 27120964497
17 209070202378
18 1668632739832
19 13763654492458
20 117143535623438
21 1027274860573646
22 9269762507422848
23 85969437563219710
24 818533062206441679
25 7992935182604293880
26 79974062362514607510
27 819199175961485536540
28 8583780760842171037456

[1,2,5,10,35,110,484,2090,10449,54526,306394,
 1817190,11357273,74488856,510662890,3649746072,
 27120964497,209070202378,1668632739832,
 13763654492458,117143535623438,1027274860573646,
 9269762507422848,85969437563219710,
 818533062206441679,7992935182604293880,
 79974062362514607510,819199175961485536540,
 8583780760842171037456]

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Last modified July 31 22:37 EDT 2021. Contains 346377 sequences. (Running on oeis4.)