A087064 Sum{Floor(n*r^k): r=1/sqrt(2), k>=0}.

0, 1, 3, 7, 9, 12, 17, 18, 22, 26, 29, 30, 37, 39, 41, 44, 49, 54, 56, 58, 63, 64, 67, 73, 77, 79, 83, 85, 88, 92, 95, 96, 103, 106, 112, 113, 117, 120, 122, 124, 131, 132, 135, 138, 142, 143, 151, 153, 158, 161, 164, 168, 171, 173, 177, 178, 183, 183, 188, 191, 192

Offset

0,3

Links

Table of n, a(n) for n=0..60.

Example

a(3)=7=3+[3*r]+[3*r^2]+[3*r^3]+...

Crossrefs

Cf. A005187.

Sequence in context: A289906 A190752 A353103 * A189561 A087550 A235387

Adjacent sequences: A087061 A087062 A087063 * A087065 A087066 A087067

Keyword

nonn

Author

Clark Kimberling, Aug 07 2003

Status

approved