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A196372 Positive integers a for which there is a primitive (-3)-Pythagorean triple (a,b,c) satisfying a<=b. 6
1, 3, 3, 5, 7, 7, 8, 8, 9, 9, 11, 11, 13, 13, 15, 15, 16, 16, 17, 17, 19, 19, 21, 21, 21, 21, 23, 23, 24, 24, 24, 24, 25, 27, 29, 31, 32, 32, 33, 33, 33, 35, 37, 39, 39, 39, 40, 40, 41, 43, 45, 47, 48, 48, 48, 48, 49, 51, 51, 51, 53, 55, 56, 56, 56, 57, 57, 57 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences.

LINKS

Table of n, a(n) for n=1..68.

EXAMPLE

Primitive (-3)-Pythagorean triples a,b,c;

c^2=a^2+b^2-3*a*b:

1,3,1

3,8,1

3,16,11

5,39,31

7,24,11

7,72,61

8,21,1

8,33,19

9,35,19

9,115,101

MATHEMATICA

(See A196369.)

CROSSREFS

Cf. A195770, A196369, A196373, A196374.

Sequence in context: A134855 A110246 A070543 * A168053 A222657 A050826

Adjacent sequences:  A196369 A196370 A196371 * A196373 A196374 A196375

KEYWORD

nonn

AUTHOR

Clark Kimberling, Oct 01 2011

STATUS

approved

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Last modified June 20 05:01 EDT 2019. Contains 324229 sequences. (Running on oeis4.)