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A126229 Odd interprimes divisible by 7. 7
21, 105, 217, 231, 315, 399, 441, 483, 861, 987, 1113, 1197, 1281, 1449, 1491, 1505, 1575, 1715, 1785, 1827, 1869, 1995, 2121, 2191, 2205, 2247, 2303, 2541, 2667, 2709, 2751, 2835, 2933, 3045, 3073, 3129, 3213, 3255, 3353, 3381, 3423, 3465, 3675, 3885 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..44.

MATHEMATICA

Do[If[OddQ[(Prime[n + 1] + Prime[n])/2] && Mod[(Prime[n + 1] + Prime[n])/2, 7] == 0, Print[(Prime[n + 1] + Prime[n])/2]], {n, 1, 3000}] (*Artur Jasinski*)

CROSSREFS

Cf. A072569, A072572, A072573, A126228, A126230, A124619, A124620, A126231, A124622, A126233.

Sequence in context: A306259 A069499 A068142 * A060537 A116689 A235876

Adjacent sequences:  A126226 A126227 A126228 * A126230 A126231 A126232

KEYWORD

nonn

AUTHOR

Artur Jasinski, Dec 21 2006

EXTENSIONS

Extended by Ray Chandler, Jan 09 2007

STATUS

approved

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Last modified February 25 11:39 EST 2020. Contains 332233 sequences. (Running on oeis4.)