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A002562 as a simple table

n a(n)
1 1
2 0
3 0
4 1
5 2
6 1
7 6
8 12
9 46
10 92
11 341
12 1787
13 9233
14 45752
15 285053
16 1846955
17 11977939
18 83263591
19 621012754
20 4878666808
21 39333324973
22 336376244042
23 3029242658210
24 28439272956934
25 275986683743434
26 2789712466510289
27 29363495934315694

[1,0,0,1,2,1,6,12,46,92,341,1787,9233,45752,
 285053,1846955,11977939,83263591,621012754,
 4878666808,39333324973,336376244042,3029242658210,
 28439272956934,275986683743434,2789712466510289,
 29363495934315694]

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)