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A084146
Integers that have exactly one representation as a sum of two or more consecutive primes.
4
5, 8, 10, 12, 15, 17, 18, 23, 24, 26, 28, 30, 31, 39, 42, 48, 49, 52, 53, 56, 58, 59, 67, 68, 71, 75, 77, 78, 84, 88, 95, 97, 98, 101, 102, 109, 121, 124, 127, 128, 129, 131, 132, 139, 144, 150, 155, 156, 158, 159, 160, 161, 162, 168, 169, 172, 173, 181, 184, 186, 192
OFFSET
1,1
COMMENTS
More fundamental than A050936, which gives integers having 1 *or more* such representations
LINKS
Eric Weisstein's World of Mathematics, Prime Sums
FORMULA
A084143(a(n)) = 1. - Ray Chandler, Sep 20 2023
MAPLE
# uses code of A084143
isA084146 := proc(n::integer)
if A084143(n) = 1 then
true;
else
false;
end if;
end proc:
for n from 1 to 300 do
if isA084146(n) then
printf("%d, ", n) ;
end if;
end do: # R. J. Mathar, Aug 19 2020
CROSSREFS
Cf. A050936, A084143, A337095 (subset of primes).
Sequence in context: A065528 A360398 A050936 * A314380 A332513 A314381
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, May 15 2003
EXTENSIONS
More terms from Matthew Conroy, May 25 2003
STATUS
approved