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A291887 as a simple table

n a(n)
3 1
4 3
5 11
6 31
7 91
8 250
9 690
10 1863
11 5017
12 13389
13 35621
14 94354
15 249352
16 657421
17 1730685
18 4550031
19 11950963
20 31365810
21 82274126
22 215711947
23 565376593
24 1481448697
25 3881041065
26 10165822434
27 26624745964
28 69725071281
29 182583838181
30 478093234315
31 1251829592839

[1,3,11,31,91,250,690,1863,5017,13389,35621,94354,
 249352,657421,1730685,4550031,11950963,31365810,
 82274126,215711947,565376593,1481448697,
 3881041065,10165822434,26624745964,69725071281,
 182583838181,478093234315,1251829592839]

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Last modified May 28 00:20 EDT 2024. Contains 372900 sequences. (Running on oeis4.)