63802

Appears in sequences

• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={2,4}.at n=20A079959
• Numbers n such that S(n) = 0, where S(n) = (S(n-1) + A000040(n+1))*(-1)^n; S(0)=0, n >= 1.at n=35A131693
• Number of distinct solutions of sum{i=1..3}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.at n=19A180774
• Irregular triangular array read by rows. T(n,k) is the number of unlabeled forests of distinct trees on n nodes containing exactly k trees.at n=63A336096
• Expansion of 1/( (1-x^2)^2 * (1-x^2-9*x) )^(1/3).at n=6A383598