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 A121086 Number of primitive Pythagorean-like triples a^2+b^2=c^2+k for k=3 with 0
 1, 13, 119, 1219, 12115, 121054, 1210480, 12101765, 121011208 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..9. EXAMPLE a(1)=1 because there is one solution (a,b,c) as (4,6,7) with 0aa+1]; fax = Ceiling[Apply[Times, fax]/2]; total += fax; , {c, m}]; total] CROSSREFS Cf. A101931, A121082, A121083, A121084, A121085, A121087, A121088 Sequence in context: A051824 A367244 A016285 * A159969 A253512 A295048 Adjacent sequences: A121083 A121084 A121085 * A121087 A121088 A121089 KEYWORD more,nonn AUTHOR Tito Piezas III, Aug 11 2006 EXTENSIONS First few terms found by Tito Piezas III, James Waldby (j-waldby(AT)pat7.com) Subsequent terms found by Andrzej Kozlowski (akoz(AT)mimuw.edu.pl), Daniel Lichtblau (danl(AT)wolfram.com) a(7) from Max Alekseyev, Jul 04 2011 a(8)-a(9) from Lars Blomberg, Dec 22 2015 STATUS approved

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Last modified April 15 17:30 EDT 2024. Contains 371693 sequences. (Running on oeis4.)