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A135446 formatted as a simple table:

n a(n)
0 -1
1 -1
2 3
3 10
4 19
5 33
6 62
7 125
8 255
9 514
10 1027
11 2049
12 4094
13 8189
14 16383
15 32770
16 65539
17 131073
18 262142
19 524285
20 1048575
21 2097154
22 4194307
23 8388609
24 16777214
25 33554429
26 67108863
27 134217730
28 268435459
29 536870913
30 1073741822

[-1,-1,3,10,19,33,62,125,255,514,1027,2049,4094,
 8189,16383,32770,65539,131073,262142,524285,
 1048575,2097154,4194307,8388609,16777214,33554429,
 67108863,134217730,268435459,536870913,
 1073741822]

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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