The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A080854 Numbers which can be expressed as the sum of two distinct primes in exactly five ways. 7
 48, 54, 64, 70, 76, 104, 106, 118, 124, 134, 136, 146, 148, 164, 166, 188 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Apparently there are no further terms beyond 188. - R. J. Mathar, Oct 01 2021 LINKS Table of n, a(n) for n=1..16. FORMULA {j: A117929(j) = 5} . - R. J. Mathar, Oct 01 2021 EXAMPLE 54 is a term as 54 = 31 + 23 = 37 + 17 = 41 + 13 = 43 + 11 = 47 + 7 are only the five ways to express 54 as a sum of two distinct primes. CROSSREFS Cf. A077914 (2 ways), A077969 (3 ways), A078299 (4 ways), A080862 (6 ways). Sequence in context: A258694 A328738 A067191 * A255267 A366250 A345503 Adjacent sequences: A080851 A080852 A080853 * A080855 A080856 A080857 KEYWORD nonn AUTHOR Shyam Sunder Gupta, Mar 29 2003 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 24 13:56 EDT 2024. Contains 373679 sequences. (Running on oeis4.)