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A036240 as a simple table

n a(n)
1 0
2 0
3 12
4 200
5 2280
6 22420
7 205212
8 1806000
9 15522960
10 131383340
11 1100093412
12 9138243400
13 75445046040
14 619838752260
15 5072272077612
16 41371548418400
17 336519691295520
18 2730963319321180
19 22119245290765812
20 178854325039467000
21 1444135501669535400

[0,0,12,200,2280,22420,205212,1806000,15522960,
 131383340,1100093412,9138243400,75445046040,
 619838752260,5072272077612,41371548418400,
 336519691295520,2730963319321180,
 22119245290765812,178854325039467000,
 1444135501669535400]

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Last modified April 19 16:08 EDT 2024. Contains 371794 sequences. (Running on oeis4.)