219031

Properties

Appears in sequences

• Primes of the form 9n^2 + 7.at n=31A201707
• Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any element at a city block distance of two, and containing the value n(n+1)/2-2.at n=35A212031
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 486", based on the 5-celled von Neumann neighborhood.at n=19A282605
• Prime numbersat n=19531