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A342552
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The number of twin primes between prime(i)*prime(i+1) and prime(i+1)*prime(i+2) where prime(i) and prime(i+1) are twin primes.
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1
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2, 3, 4, 3, 5, 6, 9, 11, 8, 12, 24, 19, 34, 14, 27, 14, 28, 17, 46, 26, 24, 55, 28, 14, 86, 50, 38, 66, 28, 67, 76, 41, 64, 40, 43, 93, 53, 87, 67, 48, 89, 66, 42, 72, 69, 76, 49, 76, 42, 49, 59, 73, 260, 109, 145, 169, 70, 137, 193, 292
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OFFSET
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1,1
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LINKS
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PROG
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(PARI) {for(n=1, 200, if(prime(n+1)-prime(n)==2, my(a=prime(n)*prime(n+1), b=prime(n+1)*prime(n+2), c=0); for(m=a, b, if(isprime(m)==1&&isprime(m+2)==1, c=c+1)); print1(c, ", ")))}
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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