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A258471 as a simple table

n a(n)
0 1
1 3
2 11
3 41
4 155
5 590
6 2258
7 8677
8 33454
9 129335
10 501180
11 1945997
12 7569223
13 29487091
14 115029830
15 449288570
16 1756808604
17 6876430799
18 26940317004
19 105635470645
20 414528962220
21 1627841401281
22 6396735649200
23 25152046015693
24 98955167336425
25 389526824102747

[1,3,11,41,155,590,2258,8677,33454,129335,501180,
 1945997,7569223,29487091,115029830,449288570,
 1756808604,6876430799,26940317004,105635470645,
 414528962220,1627841401281,6396735649200,
 25152046015693,98955167336425,389526824102747]

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Last modified August 25 18:57 EDT 2024. Contains 375454 sequences. (Running on oeis4.)