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A081154 Number of odd cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506, with no fixed points of either A057163 or A057164. 1
0, 0, 2, 6, 18, 50, 142, 388, 1114 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

CROSSREFS

a(n) = A081153(2n+1).

Sequence in context: A048495 A089380 A180282 * A002900 A199770 A204322

Adjacent sequences:  A081151 A081152 A081153 * A081155 A081156 A081157

KEYWORD

nonn

AUTHOR

Wouter Meeussen (wouter.meeussen(AT)pandora.be) & Antti Karttunen (Firstname.Surname(AT)iki.fi) Mar 10 2003

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Last modified February 16 20:14 EST 2012. Contains 205962 sequences.