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A161006 as a simple table

n a(n)
0 1
1 1
2 3
3 6
4 18
5 49
6 155
7 486
8 1614
9 5414
10 18630
11 64828
12 228740
13 814485
14 2926323
15 10588486
16 38561814
17 141214570
18 519711666
19 1921126036
20 7129756188
21 26555090618
22 99228108222
23 371886366620
24 1397548389644
25 5265130603468

[1,1,3,6,18,49,155,486,1614,5414,18630,64828,
 228740,814485,2926323,10588486,38561814,141214570,
 519711666,1921126036,7129756188,26555090618,
 99228108222,371886366620,1397548389644,
 5265130603468]

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Last modified July 3 05:06 EDT 2024. Contains 373966 sequences. (Running on oeis4.)