1567504

Appears in sequences

• Number of permutations (p(1), p(2), ..., p(n)) satisfying -k <= p(i)-i <= r and p(i)-i not in the set I, i=1..n, with k=2, r=6, I={-1,1,2,3,4,5}.at n=48A224808
• Squares whose arithmetic mean of digits is 4 (i.e., the sum of digits is 4 times the number of digits).at n=22A316484
• Number of binary words of length n avoiding distance (i+1) between "1" digits if the i-th bit is set in the binary representation of n.at n=42A376091
• E.g.f. A(x) satisfies A(x) = exp(x * (1+x^2)^3 * A(x)).at n=7A389986