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A226758 as a simple table

n a(n)
1 1
2 2
3 12
4 120
5 1680
6 30120
7 658560
8 16994880
9 505612800
10 17037851040
11 641393786880
12 26678131159680
13 1215016298496000
14 60135628841608320
15 3213908573331456000
16 184463573184501811200
17 11316253482729190195200
18 738934748606732911833600
19 51171600229826941786521600

[1,2,12,120,1680,30120,658560,16994880,505612800,
 17037851040,641393786880,26678131159680,
 1215016298496000,60135628841608320,
 3213908573331456000,184463573184501811200,
 11316253482729190195200,738934748606732911833600,
 51171600229826941786521600]

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Last modified February 25 06:04 EST 2024. Contains 370310 sequences. (Running on oeis4.)