210672

Appears in sequences

• Numbers that can be expressed as the difference of the squares of primes in exactly nine distinct ways.at n=27A092005
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 0, -1), (0, 1, 1), (1, 0, 0)}.at n=10A150005
• a(n) is the product of the numbers k such that a(n-2*k) = a(n-k) and 0 < n-2*k < n-k < n.at n=48A329311
• a(n) is the first number with a total of exactly n 3's in the decimal digits of its divisors.at n=42A387464
• a(n) is the product of all p^k such that p is a ramified or inert prime in the Gaussian integers and k is the largest such k satisfying p^k <= n.at n=18A392059
• a(n) is the product of all p^k such that p is a ramified or inert prime in the Gaussian integers and k is the largest such k satisfying p^k <= n.at n=19A392059
• a(n) is the product of all p^k such that p is a ramified or inert prime in the Gaussian integers and k is the largest such k satisfying p^k <= n.at n=20A392059
• a(n) is the product of all p^k such that p is a ramified or inert prime in the Gaussian integers and k is the largest such k satisfying p^k <= n.at n=21A392059