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 A097267 Least positive integer that is the diagonal of n primitive Pythagorean quadruples, or zero if no such integer exists. 0
 1, 3, 9, 19, 21, 27, 39, 33, 59, 51, 75, 57, 63, 103, 81, 0, 93, 121, 111, 99, 133, 123, 181, 129, 141, 153, 159, 211, 147, 227, 183, 171, 217, 263, 271, 201, 189, 219, 0, 307, 237, 243, 261, 249, 301, 267, 367, 485, 231, 291, 303, 409, 309, 419, 327, 297 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS First appearance of n in A097266. Conjecture: a(15)=a(38)=0. LINKS Eric Weisstein's World of Mathematics, Pythagorean Quadruple. CROSSREFS Cf. A096907-A096909, A097263-A097266. Sequence in context: A272513 A270979 A253219 * A043097 A084670 A002091 Adjacent sequences:  A097264 A097265 A097266 * A097268 A097269 A097270 KEYWORD nonn AUTHOR Ray Chandler, Aug 19 2004 STATUS approved

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Last modified December 19 02:36 EST 2018. Contains 318245 sequences. (Running on oeis4.)