

A143117


a(n) = the smallest positive integer that divides no more than one integer k, where nth prime <= k <= (n+1)th prime.


1



2, 2, 2, 3, 2, 3, 2, 3, 5, 2, 5, 3, 2, 3, 5, 4, 2, 4, 3, 2, 4, 3, 5, 7, 3, 2, 3, 2, 3, 8, 3, 5, 2, 6, 2, 5, 4, 3, 5, 4, 2, 6, 2, 3, 2, 9, 7, 3, 2, 3, 4, 2, 6, 5, 4, 5, 2, 5, 3, 2, 6, 10, 3, 2, 3, 9, 5, 6, 2, 3, 4, 7, 5, 4, 3, 5, 7, 3, 5, 6, 2, 6, 2, 4, 3, 5, 7, 3, 2, 3, 8, 7, 3, 5, 3, 5, 9, 2, 13, 4, 6, 4, 5, 2, 5
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..105.


FORMULA

a(n) = A140715(n) + 1.


EXAMPLE

The 16th prime is 53 and the 17th prime is 59. So we will concern ourselves with the integers 53,54,55,56,57,58,59. 1 divides all these integers. 2 divides three of these integers (54,56,58). 3 divides 54 and 57. 4 divides just 56. So a(16) = 4.


CROSSREFS

Cf. A140715, A143118.
Sequence in context: A145193 A292585 A175872 * A076221 A029235 A289052
Adjacent sequences: A143114 A143115 A143116 * A143118 A143119 A143120


KEYWORD

nonn


AUTHOR

Leroy Quet, Jul 25 2008


EXTENSIONS

Extended by Ray Chandler, Nov 10 2008


STATUS

approved



