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A181225 Number of length 2n sequences p(i=0..2n-1) with 0<=p(i)<=i and having exactly n maxima 1

%I #3 Mar 31 2012 12:35:49

%S 2,3,26,476,14905,708825,47514180,4264132468,493337571005,

%T 71476985762027,12673922434134249,2699365743596908540,

%U 679965250748621333815,199945129785484988046467,67870868805277105224767736

%N Number of length 2n sequences p(i=0..2n-1) with 0<=p(i)<=i and having exactly n maxima

%C The 2n,n elements of A181229

%H R. H. Hardin, <a href="/A181225/b181225.txt">Table of n, a(n) for n=1..135</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 10 2010

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Last modified June 13 07:35 EDT 2024. Contains 373366 sequences. (Running on oeis4.)