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A196262
Positive integers a for which there is a primitive (1/4)-Pythagorean triple (a,b,c) satisfying a<=b.
5
2, 4, 5, 6, 7, 7, 9, 10, 11, 12, 13, 15, 15, 17, 19, 20, 20, 22, 23, 25, 25, 26, 28, 31, 32, 32, 32, 33, 34, 38, 39, 41, 43, 44, 44, 46, 52, 52, 55, 55, 58, 59, 60, 62, 64, 64, 64, 65, 65, 67, 68, 68, 70, 73, 74, 76, 85, 87, 89, 92, 94, 95
OFFSET
1,1
COMMENTS
See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences.
EXAMPLE
Primitive (1/4)-Pythagorean triples a,b,c;
c^2=a^2+b^2+(1/4)*a*b:
2,2,3
4,15,16
5,32,33
6,70,71
7,20,22
7,192,193
9,44,46
10,26,29
11,20,24
12,17,22
MATHEMATICA
(See A196259.)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Sep 30 2011
STATUS
approved