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 A090185 Least k such that k*p(n)#+p(n+1) is prime, where p(i)# denotes i-th primorial and p(i) denotes i-th prime. 0
 1, 1, 1, 2, 6, 1, 1, 1, 2, 8, 3, 3, 8, 1, 2, 1, 1, 5, 12, 10, 1, 2, 18, 4, 3, 4, 14, 26, 2, 7, 38, 3, 15, 13, 8, 23, 42, 6, 45, 12, 5, 11, 26, 2, 3, 2, 16, 9, 7, 21, 39, 21, 76, 2, 18, 16, 42, 37, 6, 23, 10, 8, 51, 28, 33, 8, 94, 22, 4, 2, 11, 53, 1, 53, 10, 3, 10, 97, 19, 25, 4, 4, 15, 38, 70 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS k*p(n)#+p(n+1) is the least prime > k*p(n)#+p(n+1)+1 and if k*p(n)#+p(n+1)+1 is not prime it is the least prime > k*p(n)#+p(n+1) LINKS EXAMPLE 6*2*3*5*7*11+13=13873, 6*p(5)#+p(6)=13873, 6 is the least k for n=5 CROSSREFS Sequence in context: A175474 A021387 A127508 * A059813 A097099 A197111 Adjacent sequences:  A090182 A090183 A090184 * A090186 A090187 A090188 KEYWORD base,nonn AUTHOR Pierre CAMI (colettecami(AT)aol.com), Jan 21 2004 STATUS approved

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