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Number of even cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506, with two fixed-points of A057164.
4

%I #8 Jan 11 2024 09:18:17

%S 0,0,1,1,3,4,10,16,35,60,126,225,462,848,1716,3188,6435,12095,24310

%N Number of even cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506, with two fixed-points of A057164.

%Y Bisections: A001700 (shifted right and prepended with zero) and A081161.

%Y Cf. A081150, A081157, A081162.

%Y Cf. A014137, A014138, A057505, A057506, A057164.

%K nonn,more

%O 0,5

%A _Wouter Meeussen_ and _Antti Karttunen_, Mar 10 2003