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A118426 Values of n such that no solutions (x, y, z) to n = x^2 + (2y)^2 + z(z+1)/2 are zerofree. 3
1, 2, 3, 4, 7, 10, 12, 22, 24 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..9.

Eric Weisstein's World of Mathematics, Square-Triangle Theorem

CROSSREFS

Cf. A118421, A118422, A118423.

Sequence in context: A104519 A321684 A117220 * A082008 A105330 A097545

Adjacent sequences:  A118423 A118424 A118425 * A118427 A118428 A118429

KEYWORD

nonn,fini,more

AUTHOR

Eric W. Weisstein, Apr 27 2006

STATUS

approved

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Last modified April 20 22:22 EDT 2019. Contains 322310 sequences. (Running on oeis4.)