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A124684
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(Product of successive primes minus 2) divided by 5 is prime.
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0
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229, 1153, 14149, 15013, 189733, 214657, 253573, 350593, 514561, 522289, 725041, 853669, 1304581, 1453681, 2027569, 2183281, 2212453, 2469637, 3238513, 4166017, 4331941, 4467013, 5234689, 5510371, 5992933, 6102913, 8100097, 8130673
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| These numbers times 5 also form simiprimes.
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EXAMPLE
| 31*37 = 1147, 1147-2 = 1145, 1145/5 = 229 the second entry.
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PROG
| (PARI) g(n, p) = { for(x=1, n, y=prime(x)*prime(x+1)-2; if(y%p==0, if(isprime(y/p), print1(y/p", ")))) }
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CROSSREFS
| Cf. A123921.
Sequence in context: A142263 A142608 A142665 * A178673 A028452 A072020
Adjacent sequences: A124681 A124682 A124683 * A124685 A124686 A124687
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KEYWORD
| easy,nonn
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AUTHOR
| Cino Hilliard (hillcino368(AT)hotmail.com), Dec 27 2006
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