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Number of fixed points in range [A014137(n-1)..A014138(n-1)] of permutations A130919/A130920.
2

%I #2 Mar 31 2012 13:21:16

%S 1,1,2,3,7,10,25,54,131,331,864,2292,6169,16835

%N Number of fixed points in range [A014137(n-1)..A014138(n-1)] of permutations A130919/A130920.

%Y Cf. A130967, A057546.

%K nonn

%O 0,3

%A _Antti Karttunen_, Jun 11 2007