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A196186 Positive integers a for which there is a primitive 9-Pythagorean triple (a,b,c) satisfying a<=b. 6
1, 3, 3, 3, 3, 5, 5, 5, 7, 8, 8, 8, 9, 9, 11, 13, 13, 15, 15, 15, 15, 15, 16, 16, 16, 17, 17, 19, 19, 21, 21, 23, 23, 24, 24, 24, 24, 25, 27, 29, 31, 32, 32, 33, 35, 37, 39, 39, 39, 39, 40, 40, 40, 41, 43, 45, 45, 45, 47, 48, 48, 51, 51, 51, 53, 55, 56 (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..67.

EXAMPLE

Primitive 9-Pythagorean triples a,b,c;

c^2=a^2+b^2+9*a*b:

1,15,19

3,5,13

3,8,17

3,13,23

3,160,173

5,24,41

5,48,67

5,459,481

7,57,83

8,15,37

MATHEMATICA

(See A196183.)

CROSSREFS

Cf. A195770, A196183, A196187, A196188.

Sequence in context: A130821 A129756 A156724 * A075753 A006166 A268443

Adjacent sequences:  A196183 A196184 A196185 * A196187 A196188 A196189

KEYWORD

nonn

AUTHOR

Clark Kimberling, Sep 29 2011

STATUS

approved

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Last modified February 27 03:30 EST 2020. Contains 332299 sequences. (Running on oeis4.)