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A196386 Positive integers a for which there is a primitive (-5)-Pythagorean triple (a,b,c) satisfying a<=b. 6
1, 1, 3, 3, 5, 5, 5, 5, 7, 7, 8, 8, 8, 8, 9, 9, 11, 11, 11, 11, 13, 13, 13, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 19, 19, 19, 21, 23, 23, 24, 24, 24, 24, 25, 25, 27, 29, 29, 31, 31, 32, 32, 32, 33, 33, 35, 35, 37, 39, 39, 40, 40, 40, 40, 40, 40, 40, 41 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

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 (-5)-Pythagorean triples a,b,c;

c^2=a^2+b^2-5*a*b:

1,5,1

1,8,5

3,16,5

3,55,47

5,24,1

5,33,17

5,57,43

5,144,131

7,104,85

7,275,257

MATHEMATICA

(See A196383.)

CROSSREFS

Cf. A195770, A196383, A196387, A196388.

Sequence in context: A251549 A129972 A130829 * A035158 A196172 A123313

Adjacent sequences:  A196383 A196384 A196385 * A196387 A196388 A196389

KEYWORD

nonn

AUTHOR

Clark Kimberling, Oct 01 2011

STATUS

approved

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Last modified April 9 20:46 EDT 2020. Contains 333363 sequences. (Running on oeis4.)