A247870 Least prime factor of odd numbers congruent to 4 modulo 9.

7, 5, 11, 5, 13, 5, 7, 11, 5, 17, 7, 5, 13, 11, 5, 7, 19, 5, 7, 17, 5, 5, 29, 5, 11, 7, 13, 5, 17, 7, 5, 11, 31, 5, 7, 23, 5, 19, 7, 5, 29, 13, 5, 11, 5, 7, 5, 23, 13, 7, 5, 5, 7, 43, 5, 11, 17, 7, 19, 5, 23, 5, 11, 13, 5, 41, 7, 47, 17, 5, 31, 11, 7, 5, 13, 29, 5, 7, 23, 37, 11, 5, 17, 7, 13, 5, 43, 19, 5, 5, 7, 17, 5, 11

Offset

1,1

Links

Odimar Fabeny, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A056608, A247678.

Sequence in context: A356526 A304136 A305042 * A367689 A141391 A135766

Adjacent sequences: A247867 A247868 A247869 * A247871 A247872 A247873

Keyword

nonn,easy

Author

Odimar Fabeny, Sep 25 2014

Status

approved