39011

Appears in sequences

• Sum{T(n,k)*T(n,2n-k)}, 0<=k<=n, T given by A027926.at n=10A027990
• Numbers n such that absolute value of Sum_{k=1..n} mu(k)/k sets a new minimum.at n=13A070892
• Numbers k with squares that are concatenations k^2 = x//y such that x is an anagram of y.at n=8A162945
• Number of permutations of 1..n with displacements restricted to {-5,-4,-2,-1,0,3}.at n=14A189589
• Number of 0..3 arrays x(0..n-1) of n elements with nondecreasing average value and 0..3 occur with instance counts within one of each other.at n=18A200939
• Number of 2 X 2 matrices having all terms in {1,...,n} and determinant d satisfying -n < d < n.at n=22A211070
• a(n) = number of pairs {x,y} with (x,y > 1) such that x^y (= terms of A072103) has bit length n.at n=33A365930