868675383domain: NAppears in sequencesGreatest integer k such that k/2^n < (1+sqrt(5))/2 (the golden ratio).at n=29A293313The integer k that minimizes |k/2^n - r|, where r = golden ratio.at n=29A293315a(n) = k if k is odd otherwise a(n) = k+1 and k = floor( 2^n*(1+sqrt(5))/2 ).at n=29A376448