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A101694
A101693(2^n).
1
1, 5, 21, 341, 87381, 5726623061, 24595658764946068821, 453709822561251284617832809909024281941, 154389452316421593898094646678250543804359979554187418719276778677217506186581
OFFSET
0,2
FORMULA
a(n)=A001045(2*(2^(n-1)+1))-2*0^n
CROSSREFS
Sequence in context: A141798 A301797 A015461 * A006109 A009732 A009758
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Dec 11 2004
STATUS
approved