login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A096477 Subscripts for "secondary twin-primes": numbers n such that prime(1+prime(n)) - prime(prime(n)) = A073124(n) = 2. 6
1, 2, 3, 4, 6, 7, 13, 14, 23, 24, 29, 30, 40, 59, 63, 65, 71, 74, 90, 103, 106, 110, 112, 117, 122, 128, 132, 187, 188, 193, 207, 248, 257, 258, 267, 271, 281, 285, 292, 296, 299, 300, 303, 304, 311, 317, 325, 340, 343, 344, 354, 356, 360, 368, 382, 389, 395, 402 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Ivan Neretin, Table of n, a(n) for n = 1..10000

EXAMPLE

n = 24 means that p[1+p[24]]-p[p[24]] = p[1+89]-p[89] = 463-461 = 2

MATHEMATICA

Flatten[Position[Table[Prime[Prime[n]+1]-Prime[Prime[n]], {n, 1, 1000}], 2]]

CROSSREFS

Cf. A072677, A006450, A073124.

Sequence in context: A092591 A287924 A039947 * A039059 A151892 A162570

Adjacent sequences:  A096474 A096475 A096476 * A096478 A096479 A096480

KEYWORD

nonn

AUTHOR

Labos Elemer, Jun 23 2004

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 23:48 EDT 2019. Contains 322465 sequences. (Running on oeis4.)