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A242130
Sum of squares of three numbers x, y, z such that 3*floor(sum of squares/3) = x+y+z.
0
3, 12, 14, 18, 27, 29, 33, 35, 41, 48, 50, 54, 56, 62, 66, 72, 74, 75, 77, 81, 83, 89, 93, 99, 101, 107, 108, 110, 114, 116, 122, 126, 132, 134, 140, 146, 147, 149, 153, 155, 161, 165, 171, 173, 179, 185, 189, 192, 194, 198, 200
OFFSET
1,1
COMMENTS
Three times the quadratic average of x,y,z in most cases is greater than their sum.
EXAMPLE
a(7)=33 for 33=1^2+4^2+4^2; floor(sqrt(33/3))=3; 3*3=9=1+4+4.
CROSSREFS
Cf. A000408.
Sequence in context: A089919 A222711 A176796 * A286386 A032918 A039945
KEYWORD
nonn
AUTHOR
Carmine Suriano, May 05 2014
STATUS
approved