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A290587 as a simple table

n a(n)
1 3
2 16
3 81
4 265
5 729
6 1786
7 4060
8 8833
9 18786
10 39586
11 83273
12 175463
13 370615
14 784290
15 1661122
16 3517669
17 7441936
18 15720066
19 33145015
20 69744491
21 146458013
22 306933394
23 642004440
24 1340415817
25 2793811726
26 5813791138
27 12080174037
28 25065845455
29 51943066643
30 107509343618
31 222265656670
32 459025904205
33 947041760092
34 1952064327682

[3,16,81,265,729,1786,4060,8833,18786,39586,83273,
 175463,370615,784290,1661122,3517669,7441936,
 15720066,33145015,69744491,146458013,306933394,
 642004440,1340415817,2793811726,5813791138,
 12080174037,25065845455,51943066643,107509343618,
 222265656670,459025904205,947041760092,
 1952064327682]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)