342792

Appears in sequences

• Number of regions in an equilateral triangular figure formed by the straight line segments connecting all vertices and all points that divide the sides into n equal parts.at n=20A092867
• Numbers with prime factorization p^2*q^3*r^4 where p, q, and r are distinct primes.at n=28A190115
• Number of tilings of a 2 X n rectangle using 2 X 2 and 1 X 1 tiles, right trominoes and dominoes.at n=9A354131
• Integers k such that k = Sum k/(p_i + j), where p_i are the prime factors of k (with multiplicity). Case j = 5.at n=10A380928