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A032129 as a simple table

n a(n)
1 1
2 1
3 2
4 4
5 9
6 21
7 55
8 146
9 413
10 1194
11 3553
12 10756
13 33134
14 103273
15 325484
16 1034734
17 3314870
18 10688513
19 34662777
20 112976023
21 369876832
22 1215811262
23 4010932603
24 13275356936
25 44070010202
26 146698487202
27 489550622528

[1,1,2,4,9,21,55,146,413,1194,3553,10756,33134,
 103273,325484,1034734,3314870,10688513,34662777,
 112976023,369876832,1215811262,4010932603,
 13275356936,44070010202,146698487202,489550622528]

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Last modified May 30 00:42 EDT 2017. Contains 287304 sequences.