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30*a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 11.
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%I #4 Mar 31 2012 14:11:24

%S 291,564,742,2639,4319,5278,5408,7431,10119,10413,11085,14056,14672,

%T 19002,23492,26737,31962,33912,35308,36743,37870,45602,54348,56693,

%U 59353,60211,64397,64509,65391,72562,92617,94609,106309,114552,142160

%N 30*a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 11.

%C The nine terms in any sexy prime triple triple {{a, b, c}, {d, e, f}, {g, h, i}} may be arranged to form a 3 X 3 magic square [ h a f / c e g / d i b ].

%e a(2)=564 identifies the second sexy prime triple triple whose initial term is 11: {{11, 17, 23}, {11+30*564, 17+30*564, 23+30*564}, {11+2*30*564, 17+2*30*564, 23+2*30*564}} which is equal to {{11, 17, 23}, {16931, 16937, 16943}, {33851, 33857, 33863}}.

%Y Cf. A023201, A046117.

%K nonn

%O 1,1

%A _Ray G. Opao_, Feb 16 2004