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A077969 Numbers which can be expressed as the sum of two distinct primes in exactly three ways. 7
24, 30, 34, 40, 44, 46, 52, 56, 58, 98, 122, 128 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
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
Cf. A077914 (2 ways), A078299 (4 ways), A080854 (5 ways), A080862 (6 ways).
Sequence in context: A354809 A337933 A114635 * A122181 A167758 A248693
KEYWORD
nonn
AUTHOR
Shyam Sunder Gupta, Mar 29 2003
STATUS
approved

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Last modified June 11 14:17 EDT 2024. Contains 373311 sequences. (Running on oeis4.)