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A242918 Positions of smaller of twin primes in A001359 with index 5. 2
11, 18, 21, 27, 43, 48, 62, 77, 107, 109, 110, 118, 131, 145, 172, 201, 216, 258, 260, 265, 289, 294, 301, 307, 315, 319, 340, 350, 363, 365, 367, 381, 442, 449, 451, 453, 491, 496, 500, 515, 522, 528, 540, 559, 569, 581, 603, 613, 616, 620, 623, 630, 659, 689 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

For the definition of the index of a twin prime pair, see the comment in A242767.

LINKS

Peter J. C. Moses, Table of n, a(n) for n = 1..5000

MATHEMATICA

A242767=Join[{1}, Differences[Flatten[Position[Differences[Prime[Range[10^4]]], 2]]]];

A242918=Flatten[Position[A242767, 5]] (* Peter J. C. Moses, May 27 2014 *)

CROSSREFS

Cf. A001359, A242758, A242767, A242768, A242807, A242881, A242913, A242917.

Sequence in context: A054306 A093519 A031119 * A287868 A095648 A273679

Adjacent sequences:  A242915 A242916 A242917 * A242919 A242920 A242921

KEYWORD

nonn

AUTHOR

Vladimir Shevelev, May 26 2014

EXTENSIONS

More terms from Peter J. C. Moses, May 26 2014

STATUS

approved

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Last modified September 22 17:16 EDT 2020. Contains 337291 sequences. (Running on oeis4.)