A196122 - OEIS

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A196122

Positive integers a for which there is a primitive 4-Pythagorean triple (a,b,c) satisfying a<=b.

3, 4, 5, 7, 7, 8, 9, 11, 11, 12, 13, 13, 15, 16, 16, 17, 17, 19, 19, 20, 20, 20, 21, 23, 23, 24, 25, 25, 28, 28, 28, 29, 31, 32, 32, 35, 36, 37, 40, 41, 43, 44, 44, 44, 51, 52, 52, 52, 55, 56, 57, 60, 64, 65, 68, 68, 69, 72, 75, 76, 85, 87, 88, 91, 92, 93, 95

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OFFSET

1,1

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 4-Pythagorean triples a,b,c;

c^2=a^2+b^2+k*a*b, where k=4:

3,8,13

4,5,11