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A215087 as a simple table

n a(n)
0 1
1 1
2 3
3 8
4 26
5 92
6 372
7 1566
8 7086
9 33550
10 167504
11 873226
12 4764614
13 26947632
14 157926628
15 954523378
16 5945067490
17 38060781922
18 250345198424
19 1688978186742
20 11679437620552
21 82652840640478
22 598018846154666
23 4418072084681592
24 33298670603875846
25 255782905412464810

[1,1,3,8,26,92,372,1566,7086,33550,167504,873226,
 4764614,26947632,157926628,954523378,5945067490,
 38060781922,250345198424,1688978186742,
 11679437620552,82652840640478,598018846154666,
 4418072084681592,33298670603875846,
 255782905412464810]

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Last modified March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)