A184402 Ranks of (even i)+(even j)*r, when all i+j*r are ranked; r=sqrt(2), i>=0, j>=0.

1, 4, 6, 10, 13, 17, 19, 23, 28, 30, 34, 36, 42, 45, 49, 51, 56, 59, 62, 67, 70, 75, 78, 82, 84, 88, 91, 97, 101, 105, 107, 111, 115, 117, 122, 126, 131, 133, 138, 142, 144, 149, 154, 156, 160, 162, 167, 172, 174, 180, 185, 187, 191, 193, 199, 201, 205, 207

Offset

1,2

Links

Table of n, a(n) for n=1..58.

Example

Writing (i,j) for i+j*r, the first 7 in the ranking are (0,0), (1,0), (0,1), (2,0), (1,1), (0,2), (3,0); the ranks where i and j are both even are 1,4,6.

Crossrefs

Cf. A184397, A184398, A184399, A184400, A184401, A184403.

Sequence in context: A190370 A246439 A186514 * A350567 A079524 A141740

Adjacent sequences: A184399 A184400 A184401 * A184403 A184404 A184405

Keyword

nonn

Author

Clark Kimberling, Jan 12 2011

Status

approved