116160

Appears in sequences

• Expansion of x/((1-x)(1-4x^2)(1-5x)).at n=7A002041
• Number of compositions of n into 8 ordered relatively prime parts.at n=14A023033
• Numbers that can be written as k/d(k) in four or more ways, where d(k) = number of divisors of k.at n=13A051346
• Eighth column (r=7) of FS(5) staircase array A062985.at n=13A062990
• Negative value of coefficient of x^(n-2) in the characteristic polynomial of a certain n X n integer circulant matrix.at n=31A127407
• Numbers with prime factorization pqr^2s^6.at n=25A190474
• Numbers n such that n = k/d(k) has exactly 4 solutions, where d(k) = number of divisors of k.at n=11A217125
• Consider numbers n = concat(w,x,y,z) such that w*x*y*z | n. Leading zeros in x, y and z allowed. Sequence lists numbers that admit at least two such concatenations.at n=21A257172
• Array read by descending antidiagonals: A(n,k) is the number of achiral colorings of the facets of a regular n-dimensional orthotope using up to k colors.at n=61A325007
• Maximum number of copies of a 1234567 permutation pattern in an alternating (or zig-zag) permutation of length n + 11.at n=12A339358