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A100892 (2*n-1) XOR (2*n+1), bitwise. +0
1
2, 6, 2, 14, 2, 6, 2, 30, 2, 6, 2, 14, 2, 6, 2, 62, 2, 6, 2, 14, 2, 6, 2, 30, 2, 6, 2, 14, 2, 6, 2, 126, 2, 6, 2, 14, 2, 6, 2, 30, 2, 6, 2, 14, 2, 6, 2, 62, 2, 6, 2, 14, 2, 6, 2, 30, 2, 6, 2, 14, 2, 6, 2, 254, 2, 6, 2, 14, 2, 6, 2, 30, 2, 6, 2, 14, 2, 6, 2, 62, 2, 6, 2, 14, 2, 6, 2, 30, 2, 6, 2, 14, 2 (list; graph; listen)
OFFSET

1,1

COMMENT

a(n) = 2 * ((n-1) XOR n) = 2*A038712(n).

FORMULA

a(n) = 2^A007814(n) - 2.

CROSSREFS

Cf. A006519, A099820, A007088.

Sequence in context: A066900 A079462 A122663 this_sequence A126287 A008556 A096485

Adjacent sequences: A100889 A100890 A100891 this_sequence A100893 A100894 A100895

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 10 2005

page 1

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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