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A049172 as a simple table

n a(n)
1 1
2 1
3 3
4 11
5 45
6 195
7 887
8 4169
9 20093
10 98757
11 493123
12 2494491
13 12756393
14 65838591
15 342513423
16 1794185745
17 9455438585
18 50097517625
19 266696171475
20 1425833490011
21 7652256085781
22 41211824095067
23 222653745911847

[1,1,3,11,45,195,887,4169,20093,98757,493123,
 2494491,12756393,65838591,342513423,1794185745,
 9455438585,50097517625,266696171475,1425833490011,
 7652256085781,41211824095067,222653745911847]

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Last modified February 23 19:35 EST 2024. Contains 370283 sequences. (Running on oeis4.)