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A248784 as a simple table

n a(n)
1 1
2 1
3 2
4 6
5 10
6 42
7 72
8 360
9 672
10 2160
11 3960
12 19488
13 30464
14 177840
15 356400
16 1201200
17 2096640
18 10967040
19 17510400
20 121176000
21 193564800
22 783455904
23 1324670976
24 8010737280
25 13121514000
26 50323046400
27 88690140000
28 274271961600
29 444141105408
30 2312335872000

[1,1,2,6,10,42,72,360,672,2160,3960,19488,30464,
 177840,356400,1201200,2096640,10967040,17510400,
 121176000,193564800,783455904,1324670976,
 8010737280,13121514000,50323046400,88690140000,
 274271961600,444141105408,2312335872000]

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Last modified April 24 13:38 EDT 2024. Contains 371957 sequences. (Running on oeis4.)