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A269905 Smallest of n^2 primes in an arithmetic progression that form an n X n magic square with the least magic sum, or 0 if no such magic square exists. 1
2, 0, 199, 53297929 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) > 0 for every n >= 3 under Dickson's conjecture.

LINKS

Table of n, a(n) for n=1..4.

Wikipedia, Magic square

Wikipedia, Primes in arithmetic progression

Index entries for sequences related to magic squares

Index entries for sequences related to primes in arithmetic progressions

CROSSREFS

Cf. A113827, A269325, A269904.

Sequence in context: A012333 A012329 A064156 * A012335 A012331 A037096

Adjacent sequences:  A269902 A269903 A269904 * A269906 A269907 A269908

KEYWORD

nonn,hard,more

AUTHOR

Arkadiusz Wesolowski, Mar 07 2016

STATUS

approved

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Last modified February 19 13:25 EST 2020. Contains 332044 sequences. (Running on oeis4.)