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A248048 as a simple table

n a(n)
0 -1
1 1
2 1
3 1
4 -4
5 -6
6 30
7 -240
8 1260
9 35700
10 1256640
11 -199020360
12 -202839655480
13 1124753048683264
14 -181696576073176468304
15 1026657060420588391021488976
16 919637161132261232937508950440493056
17 839430326120023909391651548323223480699275649536

[-1,1,1,1,-4,-6,30,-240,1260,35700,1256640,
 -199020360,-202839655480,1124753048683264,
 -181696576073176468304,
 1026657060420588391021488976,
 919637161132261232937508950440493056,
 839430326120023909391651548323223480699275649536]

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Last modified February 22 08:11 EST 2024. Contains 370240 sequences. (Running on oeis4.)