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A034966 Number of different values of i^2 + j^2 + k^2 for i,j,k in [ 0,n ] (or [ -n,n ]). 6
1, 4, 10, 19, 32, 45, 67, 88, 116, 145, 179, 212, 260, 300, 347, 402, 464, 517, 592, 649, 727, 803, 886, 953, 1057, 1146, 1243, 1343, 1453, 1547, 1680, 1784, 1914, 2041, 2165, 2288, 2454, 2578, 2723, 2866, 3037, 3179, 3363, 3516, 3696, 3868, 4041, 4205 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Distinct squares of lengths of main diagonals of all i X j X k boxes with edge lengths i,j,k in [0,n]

LINKS

T. D. Noe, Table of n, a(n) for n=0..200

MATHEMATICA

Table[ Length@Union[ Flatten[ Table[ i^2+j^2+k^2, {i, 0, n}, {j, 0, n}, {k, 0, n} ] ] ], {n, 0, 49} ]

CROSSREFS

Cf. A047800, A047801.

Sequence in context: A155432 A155302 A155362 * A301256 A301092 A009868

Adjacent sequences:  A034963 A034964 A034965 * A034967 A034968 A034969

KEYWORD

nonn,easy,nice

AUTHOR

Wouter Meeussen

STATUS

approved

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Last modified November 28 16:42 EST 2021. Contains 349413 sequences. (Running on oeis4.)