0,3

Example : a(3) = 14, because 1^2 + 4^2 - 14 = 3.

Table of n, a(n) for n=0..72.

Cf. A003132, A174593.

Sequence in context: A226334 A109255 A285990 * A051222 A194411 A017545

Adjacent sequences: A174591 A174592 A174593 * A174595 A174596 A174597

base,nonn

Claudio Meller, Mar 23 2010

a(0)=1 prepended by Michel Marcus, Feb 05 2014

approved