A090775 6*a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 5.

1, 106, 246, 651, 1351, 1456, 3711, 13301, 21596, 52066, 73361, 96111, 117461, 141226, 158326, 159201, 159811, 169561, 178346, 214376, 240436, 280581, 296766, 301056, 329861, 337786, 377721, 413581, 464171, 473046, 535746, 539371, 572761

Offset: 1

Author

Ray G. Opao, Feb 08 2004

Keywords

• nonn

Comments

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 ].

Examples

			a(3)=246 identifies the third sexy prime triple triple whose initial term is 5: {{5, 11, 17}, {5+6*246, 11+6*246, 17+6*246}, {5+2*6*246, 11+2*6*246, 17+2*6*246}} which is equal to {{5, 11, 17}, {1481, 1487, 1493}, {2957, 2963, 2969}}.
		

Crossrefs

Cf. A023201, A046117.