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A302187 as a simple table

n a(n)
0 1
1 2
2 8
3 30
4 138
5 620
6 3060
7 14910
8 76650
9 390852
10 2063376
11 10832052
12 58264668
13 312123240
14 1702423008
15 9256786110
16 51036229530
17 280696824980
18 1560925457520
19 8663089672380
20 48512836025940
21 271229902496280
22 1527733861191720
23 8593482390429300
24 48642125421855420
25 275014629509319000

[1,2,8,30,138,620,3060,14910,76650,390852,2063376,
 10832052,58264668,312123240,1702423008,9256786110,
 51036229530,280696824980,1560925457520,
 8663089672380,48512836025940,271229902496280,
 1527733861191720,8593482390429300,
 48642125421855420,275014629509319000]

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Last modified April 25 10:51 EDT 2024. Contains 371967 sequences. (Running on oeis4.)