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A215143 as a simple table

n a(n)
0 1
1 2
2 7
3 28
4 112
5 441
6 1715
7 6615
8 25382
9 97069
10 370440
11 1411788
12 5375839
13 20458921
14 77833217
15 296038498
16 1125816895
17 4281011812
18 16277915640
19 61891962377
20 235320000363
21 894697938743
22 3401649302758
23 12933013979445
24 49170893188704
25 186945601728004
26 710757805310287

[1,2,7,28,112,441,1715,6615,25382,97069,370440,
 1411788,5375839,20458921,77833217,296038498,
 1125816895,4281011812,16277915640,61891962377,
 235320000363,894697938743,3401649302758,
 12933013979445,49170893188704,186945601728004,
 710757805310287]

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Last modified April 25 13:41 EDT 2024. Contains 371970 sequences. (Running on oeis4.)