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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A077969 Numbers which can be expressed as the sum of two distinct primes in exactly three ways. 0
24, 30, 34, 40, 44, 46, 52, 56, 58, 98, 122, 128 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

30 is a term as 30 = 23+7 = 19+11 = 17+13 are the only three ways to express 30 as a sum of three distinct primes.

CROSSREFS

Sequence in context: A080564 A048260 A114635 * A122181 A167758 A075422

Adjacent sequences:  A077966 A077967 A077968 * A077970 A077971 A077972

KEYWORD

nonn

AUTHOR

Shyam Sunder Gupta (guptass(AT)rediffmail.com), Mar 29 2003

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 04:23 EST 2012. Contains 205694 sequences.