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A000531 as a simple table

n a(n)
1 1
2 7
3 38
4 187
5 874
6 3958
7 17548
8 76627
9 330818
10 1415650
11 6015316
12 25413342
13 106853668
14 447472972
15 1867450648
16 7770342787
17 32248174258
18 133530264682
19 551793690628
20 2276098026922
21 9373521044908
22 38546133661492

[1,7,38,187,874,3958,17548,76627,330818,1415650,
 6015316,25413342,106853668,447472972,1867450648,
 7770342787,32248174258,133530264682,551793690628,
 2276098026922,9373521044908,38546133661492]

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)