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A196393
Positive integers a for which there is a primitive (-6)-Pythagorean triple (a,b,c) satisfying a<=b.
6
1, 2, 3, 3, 4, 5, 5, 6, 6, 7, 7, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 21, 22, 23, 24, 25, 26, 27, 28, 30, 30, 30, 33, 33, 34, 35, 35, 36, 38, 39, 39, 40, 42, 42, 42, 44, 45, 45
OFFSET
1,2
COMMENTS
See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences.
EXAMPLE
Primitive (-6)-Pythagorean triples a,b,c;
c^2=a^2+b^2-6*a*b:
1,6,1
2,15,7
3,20,7
3,28,17
4,45,31
5,42,23
5,66,49
6,35,1
6,91,71
7,72,47
MATHEMATICA
(See A196390.)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Oct 01 2011
STATUS
approved