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A269344 Magic sums of 3 X 3 semimagic squares composed of squares of primes. 1

%I #12 Apr 29 2016 23:39:52

%S 5691,26859,27531,85659,93219,111699,113331,155739,179091,203571,

%T 228459,239379,277419,281499,344931,376971,469011,487491,490299,

%U 520491,583779,631491,679539,806547,851211,896091,922659,1004379,1067619,1099539,1119459,1134771

%N Magic sums of 3 X 3 semimagic squares composed of squares of primes.

%H Arkadiusz Wesolowski, <a href="/A269344/a269344.txt">Examples of these semimagic squares</a>

%H <a href="/index/Mag#magic">Index entries for sequences related to magic squares</a>

%e Examples of 3 X 3 semimagic squares composed of squares of primes.

%e .

%e |-----|-----|-----|

%e | 11^2| 23^2| 71^2|

%e |-----|-----|-----|

%e | 43^2| 59^2| 19^2|

%e |-----|-----|-----|

%e | 61^2| 41^2| 17^2|

%e |-----|-----|-----|

%e The magic constant is 5691 = a(1).

%e .

%e |-----|-----|-----|

%e | 13^2| 67^2|149^2|

%e |-----|-----|-----|

%e | 89^2|127^2| 53^2|

%e |-----|-----|-----|

%e |137^2| 79^2| 43^2|

%e |-----|-----|-----|

%e The magic constant is 26859 = a(2).

%Y Cf. A269061. Subsequence of A269297.

%K nonn

%O 1,1

%A _Arkadiusz Wesolowski_, Apr 16 2016

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Last modified April 19 06:44 EDT 2024. Contains 371782 sequences. (Running on oeis4.)