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

1,2

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 ].

Links

Table of n, a(n) for n=1..33.

Example

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.

Sequence in context: A044719 A260202 A255818 * A213458 A260937 A200868

Adjacent sequences: A090772 A090773 A090774 * A090776 A090777 A090778

Keyword

nonn

Author

Ray G. Opao, Feb 08 2004

Status

approved