A242130 Sum of squares of three numbers x, y, z such that 3*floor(sum of squares/3) = x+y+z.

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.

Links

Table of n, a(n) for n=1..51.

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

Adjacent sequences: A242127 A242128 A242129 * A242131 A242132 A242133

Keyword

nonn

Author

Carmine Suriano, May 05 2014

Status

approved