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A056334 as a simple table

n a(n)
1 1
2 1
3 3
4 9
5 31
6 111
7 454
8 1982
9 9130
10 43547
11 211658
12 1041316
13 5156641
14 25640000
15 127773440
16 637622320
17 3184387573
18 15910938734
19 79521737938
20 397510683092
21 1987259549544
22 9935420434636
23 49674470817194

[1,1,3,9,31,111,454,1982,9130,43547,211658,
 1041316,5156641,25640000,127773440,637622320,
 3184387573,15910938734,79521737938,397510683092,
 1987259549544,9935420434636,49674470817194]

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Last modified March 28 13:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)