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 A292158 Regular triangle in which the n-th row lists the least n-tuple of positive integers in which the sum of any two members is a square. 0
 1, 1, 3, 2, 34, 47, 208, 224, 352, 737, 7442, 28658, 148583, 177458, 763442 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Ajai Choudhry, Sextuples of integers whose sums in pairs are squares, Int. J. Number Theory, 11, 543 (2015). Gordon Hamilton, Kiran S. Kedlaya, and Henri Picciotto, Square-Sum Pair Partitions, The College Mathematics Journal, Vol. 46, No. 4 (September 2015), pp. 264-269. NRICH enriching mathematics, Pair Squares Carlos Rivera, Problem 70. Set of integers whose sum of any two is a perfect square, The Prime Puzzles and Problems Connection. A. R. Thatcher, Five Integers Which Sum in Pairs to Squares, The Mathematical Gazette, Vol. 62, No. 419 (Mar., 1978), pp. 25-29. EXAMPLE Triangle begins:      1;      1,     3;      2,    34,     47;    208,   224,    352,    737;   7442, 28658, 148583, 177458, 763442;   ... CROSSREFS Cf. A195854. Sequence in context: A181994 A154332 A252595 * A303729 A296544 A136635 Adjacent sequences:  A292155 A292156 A292157 * A292159 A292160 A292161 KEYWORD nonn,tabl,more AUTHOR Michel Marcus, Sep 10 2017 STATUS approved

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Last modified September 22 13:53 EDT 2020. Contains 337289 sequences. (Running on oeis4.)