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Search: id:A073502
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| A073502 |
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Magic constant for n X n magic square with prime entries (regarding 1 as a prime) with smallest row sums. |
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+0
3
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OFFSET
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3,1
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COMMENT
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Until the early part of the twentieth century 1 was regarded as a prime (cf. A008578).
I do not know how far these entries have been rigorously computed. Lee Sallows has confirmed the first term (cf. A073473).
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REFERENCES
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W. S. Andrews and H. A. Sayles, The Monist (Chicago) for October 1913.
H. E. Dudeney, Amusements in Mathematics, Nelson, London, 1917, page 125, who quotes the Andrews-Sayles article as his source.
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LINKS
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Index entries for sequences related to magic squares
Eric Weisstein's World of Mathematics, Prime Magic Square
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CROSSREFS
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Cf. A073473 (for the n=3 square), A024351.
Sequence in context: A123698 A123727 A072807 this_sequence A066335 A107844 A084504
Adjacent sequences: A073499 A073500 A073501 this_sequence A073503 A073504 A073505
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KEYWORD
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nonn
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AUTHOR
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njas, Aug 27 2002
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EXTENSIONS
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What is the analogous sequence when 1 is not allowed? All I know is that it begins with 177 (see A024351).
Dudeney gives 36095/11 for n = 11 (an obvious typo) and 4514 for n = 12.
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