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A138018 Sum of consecutives primes p and q where p == 3 mod (10) and q == 7 mod (10). 1
30, 90, 210, 240, 330, 390, 450, 600, 630, 930, 1230, 1290, 1350, 1560, 1650, 1710, 1740, 1770, 1920, 2190, 2430, 2610, 2850, 2970, 3180, 3330, 3390, 3570, 3750, 3990, 4170, 4410, 4590, 4860, 4950, 5280, 5370, 5520, 5670, 5910, 6060 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
13 + 17 = 30, hence 30 is in the sequence; 43 + 47 = 90, hence 90 is in the sequence.
PROG
(PARI) lista(nn) = {forprime(p=3, nn, if ((p % 10 == 3) && ((q=nextprime(p+1)) % 10 == 7), print1(p+q, ", ")); ); } \\ Michel Marcus, Jun 12 2013
CROSSREFS
Cf. A135557.
Sequence in context: A008445 A039462 A370495 * A004995 A042772 A042770
KEYWORD
easy,nonn
AUTHOR
Daniele Corradetti (d.corradetti(AT)gmail.com), Feb 28 2008
EXTENSIONS
Corrected and extended by Zak Seidov, Mar 01 2008
STATUS
approved

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Last modified March 29 06:34 EDT 2024. Contains 371265 sequences. (Running on oeis4.)