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A069255
(2^((2*n-1)^2)+1)/(2^(2*n-1)+1).
0
1, 57, 1016801, 4363953127297, 4713161090115513351681, 1297440698667560637290197228189697, 91332703321545501540374299322682400349546864641
OFFSET
1,2
CROSSREFS
Sequence in context: A093257 A210148 A261948 * A065869 A301558 A022082
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Apr 14 2002
STATUS
approved