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 A189121 The constant for the smallest n X n associative magic square which consists of Smith numbers. 1
 822, 14560, 12170, 14280, 64288 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 COMMENTS In the associative magic square the sums of every pair of elements which are center-symmetrical are equal. Associative squares exist for every magic square order. REFERENCES Magic square of order 3: see the book: M. Gardner. From the Penrose tilings to securely encrypted, 1993. LINKS Table of n, a(n) for n=3..7. Max Alekseyev, Discussion on the scientific forum (in Russian) Natalia Makorova, Author's webpage (in Russian) EXAMPLE n = 6, S = 14280 [ 2722 2326 1255 2965 958 4054 2182 391 2902 3865 4306 634 4198 2605 2839 166 58 4414 346 4702 4594 1921 2155 562 4126 454 895 1858 4369 2578 706 3802 1795 3505 2434 2038 ] . n = 7, S = 64288 [ 346 18274 1219 10966 2182 16735 14566 16474 121 13666 3946 16726 12442 913 1282 17833 7762 15646 9274 706 11785 18346 2839 14719 9184 3649 15529 22 6583 17662 9094 2722 10606 535 17086 17455 5926 1642 14422 4702 18247 1894 3802 1633 16186 7402 17149 94 18022 ] CROSSREFS Cf. A104170, A170928, A188537. Sequence in context: A059002 A170928 A103764 * A364538 A326817 A271044 Adjacent sequences: A189118 A189119 A189120 * A189122 A189123 A189124 KEYWORD nonn,more,base AUTHOR Natalia Makarova, Apr 17 2011 STATUS approved

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Last modified August 3 02:02 EDT 2024. Contains 374875 sequences. (Running on oeis4.)