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A097755 Least integer "mod 4 prime signature" values that are the hypotenuse of no Pythagorean triples. 5
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 21, 24, 27, 32, 36, 42, 48, 54, 63, 64, 72, 81, 84, 96, 108, 126, 128, 144, 162, 168, 189, 192, 216, 231, 243, 252, 256, 288, 324, 336, 378, 384, 432, 441, 462, 486, 504, 512, 567, 576, 648, 672, 693, 729, 756, 768, 864, 882, 924 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A097751 for definition of "mod 4 prime signature".

Row 0 of table described in A097753; terms of A097752 with no prime factor of form 4k+1.

LINKS

Table of n, a(n) for n=1..59.

Eric Weisstein's World of Mathematics, Pythagorean Triple.

CROSSREFS

Cf. A097751, A097752, A097753, A097754, A097756.

Sequence in context: A227731 A067947 A053640 * A083854 A003586 A114334

Adjacent sequences:  A097752 A097753 A097754 * A097756 A097757 A097758

KEYWORD

nonn

AUTHOR

Ray Chandler, Aug 26 2004

EXTENSIONS

Correct offset. Ray Chandler, Jan 15 2013

STATUS

approved

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Last modified December 18 17:15 EST 2014. Contains 252173 sequences.