A187128 a(n) = the least proper divisor of A187104(n) (Numbers with property that the largest proper divisor is a cube).

2, 2, 3, 2, 2, 3, 2, 5, 2, 2, 3, 2, 5, 2, 3, 7, 2, 2, 3, 2, 2, 3, 5, 2, 2, 7, 2, 3, 5, 2, 2, 11, 3, 7, 2, 2, 3, 2, 11, 2, 5, 2, 3, 13, 2, 5, 7, 2, 3, 2, 2, 3, 7, 2, 2, 11, 3, 2, 5, 13, 2, 2, 3, 11, 5, 2, 17, 7, 2, 13, 3, 2, 2, 3, 2, 17, 2, 5, 2, 3, 19, 11, 2, 2, 5, 3, 13, 2, 2, 7, 3, 2, 2

Offset

1,1

Comments

All terms in A187104 are of the form p*m^3 where p is prime and the least proper divisor of m is not less than p. The sequence gives values of p while values of m are in A187112.

Links

Table of n, a(n) for n=1..93.

Crossrefs

a(n)=A187104(n)/(A187112(n))^3.

Sequence in context: A309674 A270516 A099318 * A255911 A091382 A127808

Adjacent sequences: A187125 A187126 A187127 * A187129 A187130 A187131

Keyword

nonn

Author

Zak Seidov, Mar 05 2011

Status

approved