A184627 floor((n-h)*s+h), where s=(3+sqrt(3))/2 and h=1/4; complement of A184626.

2, 4, 6, 9, 11, 13, 16, 18, 20, 23, 25, 28, 30, 32, 35, 37, 39, 42, 44, 46, 49, 51, 54, 56, 58, 61, 63, 65, 68, 70, 73, 75, 77, 80, 82, 84, 87, 89, 91, 94, 96, 99, 101, 103, 106, 108, 110, 113, 115, 117, 120, 122, 125, 127, 129, 132, 134, 136, 139, 141, 143, 146, 148, 151, 153, 155, 158, 160, 162, 165, 167, 170, 172, 174, 177, 179, 181, 184, 186, 188, 191, 193, 196, 198, 200, 203, 205, 207, 210, 212, 214, 217, 219, 222, 224, 226, 229, 231, 233, 236, 238, 240, 243, 245, 248, 250, 252, 255, 257, 259, 262, 264, 267, 269, 271, 274, 276, 278, 281, 283

Offset

1,1

Links

Table of n, a(n) for n=1..120.

Formula

a(n)=floor((n-h)*s+h), where s=(3+sqrt(3))/2 and h=1/4.

Mathematica

r=3^(1/2); h=1/4; s=r/(r-1);
Table[Floor[n*r+h], {n, 1, 120}]  (* A184626 *)
Table[Floor[n*s+h-h*s], {n, 1, 120}]  (* A184627 *)

Crossrefs

Cf. A184618, A184626.

Sequence in context: A330118 A047292 A189930 * A203988 A160813 A247515

Adjacent sequences: A184624 A184625 A184626 * A184628 A184629 A184630

Keyword

nonn

Author

Clark Kimberling, Jan 18 2011

Status

approved