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A063027 as a simple table

n a(n)
0 0
1 1
2 1
3 3
4 9
5 33
6 126
7 510
8 2127
9 9113
10 39809
11 176735
12 794937
13 3615045
14 16593156
15 76773972
16 357692784
17 1676664234
18 7901590287
19 37416151209
20 177935914254
21 849461877990
22 4069507806000
23 19557840481380
24 94267485120510
25 455575848843726
26 2207117072396682
27 10717034365197286

[0,1,1,3,9,33,126,510,2127,9113,39809,176735,
 794937,3615045,16593156,76773972,357692784,
 1676664234,7901590287,37416151209,177935914254,
 849461877990,4069507806000,19557840481380,
 94267485120510,455575848843726,2207117072396682,
 10717034365197286]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)