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A000918 formatted as a simple table:

n a(n)
0 -1
1 0
2 2
3 6
4 14
5 30
6 62
7 126
8 254
9 510
10 1022
11 2046
12 4094
13 8190
14 16382
15 32766
16 65534
17 131070
18 262142
19 524286
20 1048574
21 2097150
22 4194302
23 8388606
24 16777214
25 33554430
26 67108862
27 134217726
28 268435454

[-1,0,2,6,14,30,62,126,254,510,1022,2046,4094,
 8190,16382,32766,65534,131070,262142,524286,
 1048574,2097150,4194302,8388606,16777214,33554430,
 67108862,134217726,268435454]

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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