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A167597
The isolated nonprimes that are the sum of two successive primes.
3
12, 18, 30, 42, 60, 138, 198, 240, 462, 600, 618, 810, 828, 882, 1230, 1290, 1320, 1428, 1482, 1620, 1668, 1722, 1878, 2088, 2112, 2688, 2970, 3330, 3390, 3768, 4002, 4092, 4242, 4260, 4482, 4518, 5100, 5280, 5418, 5502, 5520, 5652, 6090, 6198, 6300, 6450
OFFSET
1,1
LINKS
FORMULA
A001043 INTERSECT A014574. [R. J. Mathar, May 30 2010]
MAPLE
N:= 10000: # to get all terms <= N
Primes:= select(isprime, [seq(i, i=3..N+1, 2)]):
A001043:= convert(Primes[1..-2] + Primes[2..-1], set):
Primes:= convert(Primes, set):
A:= map(`+`, Primes intersect map(`-`, Primes, 2), 1) intersect A001043:
sort(convert(A, list)); # Robert Israel, Jan 18 2016
CROSSREFS
Sequence in context: A225576 A275082 A256753 * A138636 A075281 A171179
KEYWORD
nonn
AUTHOR
EXTENSIONS
Corrected (60 inserted, 178 replaced by 198, 462 inserted....) by R. J. Mathar, May 30 2010
STATUS
approved