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A184399
Ranks of (odd i)+(odd j)*r, when all i+j*r are ranked; r=sqrt(2), i>=0, j>=0.
6
5, 12, 15, 21, 26, 31, 33, 39, 46, 48, 52, 55, 63, 66, 71, 74, 79, 83, 87, 92, 96, 102, 106, 110, 112, 116, 121, 127, 132, 137, 139, 143, 148, 150, 155, 161, 166, 168, 173, 179, 181, 186, 192, 194, 198, 200, 206, 212, 214, 220, 227, 229, 233, 235, 241, 244, 248, 250, 257
OFFSET
1,1
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 rank where i and j are both odd is 5.
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 12 2011
STATUS
approved