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A025580 formatted as a simple table:

n a(n)
0 1
1 0
2 1
3 5
4 13
5 -1
6 41
7 383
8 901
9 -47
10 1945
11 26141
12 29368
13 -6359
14 296509
15 345525
16 756291
17 -197211
18 10483329
19 225371001
20 242537898
21 -3394965
22 204481239
23 5215763433

[1,0,1,5,13,-1,41,383,901,-47,1945,26141,29368,
 -6359,296509,345525,756291,-197211,10483329,
 225371001,242537898,-3394965,204481239,
 5215763433]

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.


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