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 A260673 Smallest primes of 4 X 4 magic squares formed from consecutive primes. 8
 31, 37, 1229, 4931, 12553, 3259909, 3324329, 9291521, 24066643, 26025107, 46330021, 95979511, 99268649, 116923057, 170995151, 204041417, 213084871, 218568971, 229981399, 232850557, 254042641, 255432869, 256714219, 300222341, 375303157, 383432249, 421514827 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES Allan W. Johnson, Jr., Consecutive-Prime Magic Squares, Journal of Recreational Mathematics, vol. 15, 1982-83, pp. 17-18. LINKS Harvey D. Heinz, Prime Numbers Magic Squares: Minimum consecutive primes - 4, 1999-2010. Carlos Rivera, Puzzle 3 Eric Weisstein's World of Mathematics, Prime Magic Square EXAMPLE n = 3 |----|----|----|----| |1229|1249|1321|1319| |----|----|----|----| |1301|1303|1231|1283| |----|----|----|----| |1297|1277|1307|1237| |----|----|----|----| |1291|1289|1259|1279| |----|----|----|----| .         n = 4 |----|----|----|----| |4943|4933|5011|5009| |----|----|----|----| |4999|4973|4967|4957| |----|----|----|----| |5003|4969|4987|4937| |----|----|----|----| |4951|5021|4931|4993| |----|----|----|----| PROG (PARI) A260673(n)=MagicPrimes(A173981(n), 4)[1] \\ See A073519 for MagicPrimes(). - M. F. Hasler, Oct 28 2018 CROSSREFS Cf. A073521, A173981, A256891, A270864, A272386 (analog for n=5), A176571 (magic sums for n=5), A272387. Subsequence of A270865. Sequence in context: A107012 A276305 A170853 * A062213 A097759 A247251 Adjacent sequences:  A260670 A260671 A260672 * A260674 A260675 A260676 KEYWORD nonn AUTHOR Arkadiusz Wesolowski, Nov 14 2015 EXTENSIONS Extended by Arkadiusz Wesolowski, Dec 13 2015 STATUS approved

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Last modified August 26 05:23 EDT 2019. Contains 326328 sequences. (Running on oeis4.)