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A141722
a(n)=4a(n-1)+21.
+0
4
1, 25, 121, 505, 2041, 8185, 32761, 131065, 524281, 2097145, 8388601, 33554425, 134217721, 536870905, 2147483641, 8589934585
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Maintained by
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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