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A106506 Length of side common to the two angles, one being the double of the other, of a primitive integer-sided triangle, sorted on perimeter (A106499). +0
11
5, 7, 16, 9, 11, 33, 24, 13, 39, 15, 56, 32, 17, 51, 85, 19, 72, 57, 40, 95, 21, 120, 105, 23, 88, 69, 48, 115, 25, 161, 75, 27, 104, 175, 56, 135, 29, 208, 189, 87, 168, 145, 31, 120, 203, 93, 64, 261, 155, 33, 240, 217, 192, 279, 165, 35, 136, 231, 105, 320, 72, 37, 272 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) = A106501(n)^2 - A106500(n)^2.

CROSSREFS

Cf. A106499-A106505, A106410, A106420, A106430.

Sequence in context: A120282 A132094 A082878 this_sequence A029649 A060640 A064944

Adjacent sequences: A106503 A106504 A106505 this_sequence A106507 A106508 A106509

KEYWORD

nonn

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), May 04 2005

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), May 09 2005

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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