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

 

Logo

Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A178917 Pairs prime(k), prime(k+1) such that last digit of prime(k) is 9 and last digit of prime(k+1) is 7. 0
89, 97, 359, 367, 389, 397, 449, 457, 479, 487, 719, 727, 929, 937, 1069, 1087, 1109, 1117, 1259, 1277, 1439, 1447, 1559, 1567, 1759, 1777, 1979, 1987, 2459, 2467, 2609, 2617, 2699, 2707, 2879, 2887, 2909, 2917, 3209, 3217, 3449, 3457, 3719, 3727 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

PROG

(MAGMA) &cat[ [p, q]: p in PrimesUpTo(4000) | P[1] eq 9 and Q[1] eq 7 where P is Intseq(p) where Q is Intseq(q) where q is NextPrime(p) ]; - Klaus Brockhaus, Jan 01 2011

CROSSREFS

Sequence in context: A088993 A107202 A260807 * A159026 A256240 A090062

Adjacent sequences:  A178914 A178915 A178916 * A178918 A178919 A178920

KEYWORD

nonn,base,less

AUTHOR

Vincenzo Librandi, Dec 29 2010

EXTENSIONS

Corrected (2789, 2857 removed) by Klaus Brockhaus, Jan 01 2011

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 13 01:33 EST 2017. Contains 295954 sequences.