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A290940 as a simple table

n a(n)
2 0
3 0
4 16
5 920
6 7800
7 36260
8 122080
9 334656
10 794640
11 1696200
12 3334320
13 6137560
14 10706696
15 17859660
16 28683200
17 44591680
18 67393440
19 99365136
20 143334480
21 202771800
22 281890840
23 385759220
24 520418976
25 693017600
26 911950000
27 1187011800
28 1529564400
29 1952712216
30 2471492520

[0,0,16,920,7800,36260,122080,334656,794640,
 1696200,3334320,6137560,10706696,17859660,
 28683200,44591680,67393440,99365136,143334480,
 202771800,281890840,385759220,520418976,693017600,
 911950000,1187011800,1529564400,1952712216,
 2471492520]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)