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Search: id:A072359
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| A072359 |
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Primes p such that the p-1 digits of the decimal expansion of k/p (for k=1,2,3,...,p-1) fit into the k-th row of a magic square grid of order p-1. |
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3
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| 19, 383, 32327, 34061, 45341, 61967, 65699, 117541, 158771, 405817, 444287, 456503, 695389, 724781, 1102567, 1177859, 1498139, 2336989, 2695337, 3036857, 3249419, 3512749, 3571429, 4427299, 5141051, 7033823, 8324411, 9932179
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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W. S. Andrews, Magic Squares and Cubes, pp. 176 Dover NY 1960.
J. Heleen, Journal of Recreational Mathematics, 30(1) 1999-2000 pp. 72-3 Soln. to Prob. 2394. Magic Reciprocals
M. J. Zerger, Journal of Recreational Mathematics, 30(2) 1999-2000 pp. 158-160 Soln. to Prob. 2420. Only 19?
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LINKS
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H. Heinz, Order-18 based on 1/19
S. Whitechapel, Reciprocal Arrangements
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CROSSREFS
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Cf. A096339, A096660.
Adjacent sequences: A072356 A072357 A072358 this_sequence A072360 A072361 A072362
Sequence in context: A041686 A023283 A075839 this_sequence A094737 A009075 A015694
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KEYWORD
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nonn
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AUTHOR
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Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 18 2002
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EXTENSIONS
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More terms from William Rex Marshall (w.r.marshall(AT)actrix.co.nz), Aug 18 2005
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