83421

Appears in sequences

• Numbers which are the sum of two positive cubes and divisible by 23.at n=34A101806
• Ratio of quadruple Sum of k^2-1 to quadruple sum of k made into an integer sequence: (1/6)*(-1 + n)*(2 + n)*(3 + n)*(7 + n).at n=23A130863
• Number of modified skew Dyck paths of semilength n.at n=10A230823
• The sum of the numbers on the perimeter of the n X n diamond frame, located at the top of the numerical pyramid containing the positive integers in natural order.at n=31A359096
• Number of n edge connected sensed planar maps with an external face in which all internal faces are triangles.at n=18A378338