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A227540 as a simple table

n a(n)
0 1
1 4
2 18
3 1
4 150
5 1
6 294
7 1
8 270
9 1
10 726
11 1
12 35490
13 1
14 90
15 1
16 8670
17 1
18 15162
19 1
20 6930
21 1
22 3174
23 1
24 68250
25 1
26 162
27 1
28 25230
29 1
30 443982
31 1
32 16830
33 1
34 210
35 1
36 71010030
37 1
38 234
39 1
40 554730
41 1
42 77658
43 1
44 31050
45 1
46 13254
47 1
48 2274090
49 1
50 3366
51 1
52 84270
53 1
54 43890
55 1

[1,4,18,1,150,1,294,1,270,1,726,1,35490,1,90,1,
 8670,1,15162,1,6930,1,3174,1,68250,1,162,1,25230,
 1,443982,1,16830,1,210,1,71010030,1,234,1,554730,
 1,77658,1,31050,1,13254,1,2274090,1,3366,1,84270,
 1,43890,1]

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Last modified September 18 10:31 EDT 2020. Contains 337166 sequences. (Running on oeis4.)