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 A270830 Smallest of n^2 consecutive primes that form an n X n semimagic square with the least magic sum, or 0 if no such magic square exists. 1
 2, 0, 21821, 5, 13, 7, 7, 79, 37, 23, 67, 89, 13, 89, 131, 31, 71, 47, 43, 73, 277, 353, 41, 67, 127, 223, 79, 13, 193, 5, 23, 43, 5, 67, 3, 19, 5, 59, 59, 653, 19, 19, 97, 409, 5, 383, 29, 137, 379, 349, 653, 1187, 47, 41, 37, 17, 619, 89, 283, 283, 43, 479, 191 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) <= A104157. For n = 3 and 4, a(n) is different from A104157(n). LINKS CROSSREFS Cf. A104157, A265139, A265614, A270829. Sequence in context: A265594 A269904 A090446 * A270829 A104157 A073520 Adjacent sequences:  A270827 A270828 A270829 * A270831 A270832 A270833 KEYWORD nonn AUTHOR Arkadiusz Wesolowski, Mar 23 2016 STATUS approved

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Last modified December 17 09:23 EST 2018. Contains 318193 sequences. (Running on oeis4.)