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A124453 formatted as a simple table:

n a(n)
0 1
1 0
2 -1
3 2
4 -8
5 48
6 -378
7 3672
8 -42368
9 565760
10 -8579000
11 145590000
12 -2733455808
13 56248698240
14 -1258816278272
15 30438340438016
16 -790789409079296
17 21967629557170176
18 -649763240318538624
19 20387405315291592960
20 -676348013837480576000
21 23653682853089611520000

[1,0,-1,2,-8,48,-378,3672,-42368,565760,-8579000,
 145590000,-2733455808,56248698240,-1258816278272,
 30438340438016,-790789409079296,21967629557170176,
 -649763240318538624,20387405315291592960,
 -676348013837480576000,23653682853089611520000]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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