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A291685 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 16
5 52
6 189
7 683
8 2621
9 10061
10 40031
11 159201
12 650880
13 2657089
14 11062682
15 46065143
16 194595138
17 822215099
18 3513875245
19 15021070567
20 64785349064
21 279575206629
22 1214958544538
23 5283266426743
24 23106210465665
25 101120747493793
26 444614706427665

[1,1,2,5,16,52,189,683,2621,10061,40031,159201,
 650880,2657089,11062682,46065143,194595138,
 822215099,3513875245,15021070567,64785349064,
 279575206629,1214958544538,5283266426743,
 23106210465665,101120747493793,444614706427665]

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Last modified April 16 03:28 EDT 2024. Contains 371696 sequences. (Running on oeis4.)