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A123025 formatted as a simple table:

n a(n)
1 1
2 1
3 -1
4 -5
5 11
6 95
7 -319
8 -3895
9 17545
10 276545
11 -1561505
12 -30143405
13 204557155
14 4672227775
15 -37024845055
16 -976495604975
17 8848937968145
18 264630308948225
19 -2698926080284225
20 -90238935351344725
21 1022892984427721275
22 37810113912213439775
23 -471553665821179507775

[1,1,-1,-5,11,95,-319,-3895,17545,276545,-1561505,
 -30143405,204557155,4672227775,-37024845055,
 -976495604975,8848937968145,264630308948225,
 -2698926080284225,-90238935351344725,
 1022892984427721275,37810113912213439775,
 -471553665821179507775]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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