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A096318
a(n) is the prime the precedes the first occurrence of a prime gap of 2n where the product of the smallest prime factor of each composite number in the gap is minimal.
1
3, 7, 23, 89, 409, 199, 113, 22621, 9109, 27827, 9439, 89867, 803867, 323509, 409187, 901367, 134293
OFFSET
1,1
EXAMPLE
a(3) = 23. This precedes the composite numbers 24,25,26,27,28 whose smallest prime factors are 2,5,2,3,2, respectively. Their product is 120, which is minimal.
CROSSREFS
Cf. A096317.
Sequence in context: A366694 A100964 A080077 * A373608 A299404 A268140
KEYWORD
nonn
AUTHOR
Ray G. Opao, Aug 02 2004
STATUS
approved