2,2

Table of n, a(n) for n=2..84.

R(x) = Riemann Pi(x) approximation

(PARI) p(n) = for(x=2, n, y=R(2*x)-R(x); print1(floor(y)", ")) R(x) = \ Riemann approx of Pi(x) { local(j); round(sum(j=1, 200, moebius(j)*Li(x^(1/j))/j)) }

Sequence in context: A052146 A097882 A108955 * A289133 A135297 A176146

Adjacent sequences: A108953 A108954 A108955 * A108957 A108958 A108959

easy,nonn

Cino Hilliard, Jul 22 2005

approved