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A084864 Numbers that can be written in the form 2*u^2 + 3*v^2, u*v>0. 3
5, 11, 14, 20, 21, 29, 30, 35, 44, 45, 50, 53, 56, 59, 62, 66, 75, 77, 80, 83, 84, 93, 98, 99, 101, 107, 110, 116, 120, 125, 126, 131, 140, 146, 147, 149, 155, 158, 165, 173, 174, 176, 179, 180, 189, 194, 197, 200, 203, 206, 210, 212, 219, 224, 227, 236, 237 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A084863(a(n)) > 0; for primes see A084865, A084866.

LINKS

Table of n, a(n) for n=1..57.

EXAMPLE

30 = 18 + 12 = 2*3^2 + 3*2^2, therefore 30 is a term.

CROSSREFS

Sequence in context: A313998 A174177 A256785 * A284396 A313999 A267298

Adjacent sequences:  A084861 A084862 A084863 * A084865 A084866 A084867

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jun 10 2003

STATUS

approved

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Last modified January 19 18:20 EST 2019. Contains 319309 sequences. (Running on oeis4.)