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A351642 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 10
5 26
6 74
7 218
8 668
9 2116
10 6928
11 23254
12 79998
13 281694
14 1011956
15 3704900
16 13815692
17 52386978
18 201787950
19 789178950
20 3130824160
21 12589367840
22 51287685476
23 211557376938
24 883067740514
25 3728494418330
26 15916998678040
27 68672820917088
28 299331260431104

[1,1,2,4,10,26,74,218,668,2116,6928,23254,79998,
 281694,1011956,3704900,13815692,52386978,
 201787950,789178950,3130824160,12589367840,
 51287685476,211557376938,883067740514,
 3728494418330,15916998678040,68672820917088,
 299331260431104]

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Last modified April 17 17:01 EDT 2024. Contains 371765 sequences. (Running on oeis4.)