The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A110995 Integers k such that 6*10^k + 41 is a prime number. 0
 0, 1, 2, 4, 6, 8, 50, 54, 102, 134, 212, 872, 3055, 3427, 3528, 4262, 4414, 6084, 93792 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "60041". a(20) > 10^5. - Robert Price, Jan 19 2017 LINKS Table of n, a(n) for n=1..19. Makoto Kamada, List of near-repdigit-related prime numbers. Index entries for primes involving repunits. EXAMPLE k = 4 is a term because 6*10^4 + 41 = 6*10000 + 41 = 60000 + 41 = 60041, which is a prime number. CROSSREFS Cf. A049054, A088274, A088275, A095688, A107083, A108049, A108050, A108052, A108054. Sequence in context: A083433 A083435 A163502 * A075401 A083145 A085920 Adjacent sequences: A110992 A110993 A110994 * A110996 A110997 A110998 KEYWORD nonn,more AUTHOR Julien Peter Benney (jpbenney(AT)ftml.net), Oct 04 2005 EXTENSIONS a(18) from Ray Chandler, Dec 23 2010 a(1)-a(2) prepended by Robert Price, Jan 19 2017 a(19) from Robert Price, Jan 19 2017 STATUS approved

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

Last modified June 16 11:09 EDT 2024. Contains 373429 sequences. (Running on oeis4.)