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A256980 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 2
6 4
7 8
8 11
9 2
10 35
11 68
12 9
13 252
14 524
15 75
16 2
17 2994
18 7161
19 934
20 28
21 68665
22 171684
23 20296
24 432
25 3
26 3013075
27 7849829
28 840786
29 12766
30 115 

[1,1,1,1,2,4,8,11,2,35,68,9,252,524,75,2,2994,
 7161,934,28,68665,171684,20296,432,3,3013075,
 7849829,840786,12766,115]

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Last modified September 16 23:59 EDT 2024. Contains 375984 sequences. (Running on oeis4.)