80330

Appears in sequences

• Numbers m such that 3*2^m - 1 is prime.at n=40A002235
• Numbers which are the sum of two squared primes in exactly three ways (ignoring order).at n=32A226562
• Number of n-length words on {1,2,3,4} such that the maximal runs of identical odd integers are of odd length and the maximal runs of identical even integers are of even length.at n=13A242536
• The number of nonnegative walks of n steps with step sizes 1 and 2, starting at 0 and ending at 2.at n=11A296619
• Number of distinct circles that can be constructed from an n X n square grid of points when each pair of points is connected by a circle and the points lie at the ends of a diameter of the circle.at n=23A360350