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A080862
Numbers which can be expressed as the sum of two distinct primes in exactly six ways.
8
60, 66, 72, 100, 110, 116, 172, 178, 182, 194, 206, 212, 218, 226, 248, 278, 326, 332, 398
OFFSET
1,1
COMMENTS
Apparently there are no further terms beyond 398. - R. J. Mathar, Oct 01 2021
FORMULA
{j: A117929(j) = 6}. - R. J. Mathar, Oct 01 2021
EXAMPLE
66 is a term as 66 = 37 + 29 = 43 + 23 = 47 + 17 = 53 + 13 = 59 + 7 = 61 + 5 are only the six ways to express 66 as a sum of two distinct primes.
CROSSREFS
Cf. A077914 (2 ways), A077969 (3 ways), A078299 (4 ways), A080854 (5 ways).
Sequence in context: A138690 A118155 A066722 * A239415 A106130 A216828
KEYWORD
nonn
AUTHOR
Shyam Sunder Gupta, Mar 29 2003
STATUS
approved