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A159907 as a simple table

n a(n)
1 2
2 24
3 4320
4 4680
5 26208
6 8910720
7 17428320
8 20427264
9 91963648
10 197064960
11 8583644160
12 10200236032
13 21857648640
14 57575890944
15 57629644800
16 206166804480
17 17116004505600
18 1416963251404800
19 15338300494970880

[2,24,4320,4680,26208,8910720,17428320,20427264,
 91963648,197064960,8583644160,10200236032,
 21857648640,57575890944,57629644800,206166804480,
 17116004505600,1416963251404800,15338300494970880]

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Last modified July 13 00:23 EDT 2024. Contains 374259 sequences. (Running on oeis4.)