65414

Appears in sequences

• Series for first parallel moment of hexagonal lattice.at n=11A006740
• a(n) = (8*(2^n) - n^2 - 3*n - 6)/2.at n=14A048492
• G.f.: A(x) = A_1 where A_1 = 1/[1 - x*(A_2)^2], A_2 = 1/[1 - x^2*(A_3)^2], A_3 = 1/[1 - x^3*(A_4)^2], ... A_n = 1/[1 - x^n*(A_{n+1})^2] for n>=1.at n=17A132332
• Numbers whose sum of anti-divisors is equal to the sum of the divisors of their arithmetic derivative.at n=31A249912
• Main diagonal of arrays A265901 and A265903.at n=11A265900
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 517", based on the 5-celled von Neumann neighborhood.at n=40A272732
• Times on a 12-hour digital clock with 6 digits at which the three continuously moving hands of an analog clock, in the best approximation, enclose the same angles with one another, i.e., have the smallest sum of squares of the deviations from 120 degrees. When interpreting the terms as times of the day in the form hh:mm:ss, padding to the left with zeros is assumed.at n=12A347040