64768

Appears in sequences

• a(n) = A027144(2n, n).at n=7A027145
• a(n) = A027144(n, floor(n/2)).at n=14A027150
• Sum of the squares modulo 2^n of the odd numbers less than 2^n.at n=8A187468
• Expansion of phi(-x^5) * f(x^2, x^8) / psi(-x)^2 in powers of x where phi, psi, f(,) are Ramanujan theta functions.at n=31A259392
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 245", based on the 5-celled von Neumann neighborhood.at n=7A271005
• a(n) is the smallest nonnegative integer k where exactly n pairs of positive integers (x, y) exist such that x^2 + 7*y^2 = k.at n=14A374159