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A148915 as a simple table

n a(n)
0 1
1 1
2 3
3 8
4 32
5 110
6 444
7 1676
8 7090
9 28314
10 121990
11 504920
12 2212372
13 9382416
14 41584876
15 179539056
16 803135830
17 3514731918
18 15837959224
19 70054928916
20 317581225854
21 1416879893330
22 6455464123356
23 29006054220056
24 132718076206868
25 599896260799838
26 2754895622501684
27 12515550063373760
28 57657852586593046

[1,1,3,8,32,110,444,1676,7090,28314,121990,504920,
 2212372,9382416,41584876,179539056,803135830,
 3514731918,15837959224,70054928916,317581225854,
 1416879893330,6455464123356,29006054220056,
 132718076206868,599896260799838,2754895622501684,
 12515550063373760,57657852586593046]

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Last modified May 15 05:46 EDT 2024. Contains 372538 sequences. (Running on oeis4.)