0,4

Table of n, a(n) for n=0..73.

a(n) = Floor(n*r)-Floor((n-1)*r)+Floor((n-2)*r)-...+d*Floor(r), where d=(-1)^(n+1) and r=2^(1/2).

Cf. A129229, A129232.

Sequence in context: A225411 A247815 A057953 * A166477 A124332 A295311

Adjacent sequences: A129228 A129229 A129230 * A129232 A129233 A129234

nonn

Clark Kimberling, Apr 04 2007

approved