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A100892 (2*n-1) XOR (2*n+1), bitwise. 0
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; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

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: A079462 A189218 A122663 * A126287 A174857 A008556

Adjacent sequences:  A100889 A100890 A100891 * A100893 A100894 A100895

KEYWORD

nonn

AUTHOR

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

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Last modified February 15 11:21 EST 2012. Contains 205776 sequences.