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A110556 formatted as a simple table:

n a(n)
0 1
1 -1
2 3
3 -10
4 35
5 -126
6 462
7 -1716
8 6435
9 -24310
10 92378
11 -352716
12 1352078
13 -5200300
14 20058300
15 -77558760
16 300540195
17 -1166803110
18 4537567650
19 -17672631900
20 68923264410
21 -269128937220
22 1052049481860
23 -4116715363800
24 16123801841550

[1,-1,3,-10,35,-126,462,-1716,6435,-24310,92378,
 -352716,1352078,-5200300,20058300,-77558760,
 300540195,-1166803110,4537567650,-17672631900,
 68923264410,-269128937220,1052049481860,
 -4116715363800,16123801841550]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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