0,4

T. D. Noe, Table of n, a(n) for n = 0..10000

Michael Gilleland, Some Self-Similar Integer Sequences

C. D. Olds, On the representations N_3(n^2), Bull. Am. Math. Soc. 47 (6) (1941) 499-503

a(n) = A000164(n^2). - R. J. Mathar, Feb 12 2017

Table[Length[PowersRepresentations[n^2, 3, 2]], {n, 0, 100}]

Cf. A065458.

Column k=3 of A255212.

Sequence in context: A126865 A104640 A193335 * A241318 A276064 A054992

Adjacent sequences: A016724 A016725 A016726 * A016728 A016729 A016730

nonn

csvcjld(AT)nomvst.lsumc.edu

approved