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 A081148 Number of odd cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506. 5
 1, 1, 0, 1, 0, 4, 0, 9, 0, 24, 0, 62, 0, 162, 0, 447, 0, 1234, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,6 COMMENTS For the convenience of the range notation above, we define A014137(-1) and A014138(-1) as zero. LINKS Table of n, a(n) for n=0..18. Antti Karttunen, Counted with the help of this C program. FORMULA a(n) = A081153(n) + A081155(n) = A057507(n) - A081150(n). CROSSREFS Bisection: A081149. Cf. A081153, A081155, A057507, A081150. Cf. A014137, A014138, A057505, A057506. Sequence in context: A291716 A022899 A364101 * A306954 A187606 A138478 Adjacent sequences: A081145 A081146 A081147 * A081149 A081150 A081151 KEYWORD nonn,more AUTHOR Wouter Meeussen and Antti Karttunen, Mar 10 2003 STATUS approved

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Last modified August 11 04:26 EDT 2024. Contains 375059 sequences. (Running on oeis4.)