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A015454 as a simple table

n a(n)
0 1
1 1
2 9
3 73
4 593
5 4817
6 39129
7 317849
8 2581921
9 20973217
10 170367657
11 1383914473
12 11241683441
13 91317382001
14 741780739449
15 6025563297593
16 48946287120193
17 397595860259137
18 3229713169193289
19 26235301213805449
20 213112122879636881

[1,1,9,73,593,4817,39129,317849,2581921,20973217,
 170367657,1383914473,11241683441,91317382001,
 741780739449,6025563297593,48946287120193,
 397595860259137,3229713169193289,
 26235301213805449,213112122879636881]

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Last modified March 29 10:59 EDT 2024. Contains 371277 sequences. (Running on oeis4.)