login
A078375
Smallest prime factor of numbers which can be written as sum of a positive square and a positive cube.
1
2, 5, 3, 2, 2, 17, 2, 2, 2, 31, 3, 2, 37, 43, 2, 2, 2, 3, 3, 5, 2, 2, 73, 2, 2, 2, 89, 7, 2, 101, 2, 113, 2, 2, 127, 2, 3, 2, 3, 5, 2, 2, 2, 7, 2, 2, 3, 2, 3, 5, 3, 2, 197, 2, 2, 2, 7, 2, 223, 3, 2, 2, 233, 241, 2, 2, 257, 2, 2, 5, 269, 2, 283, 17, 2, 2, 3, 2, 2, 3, 5, 2, 337, 2, 347, 2, 3, 2
OFFSET
1,1
COMMENTS
a(n)=A020639(A055394(n)).
CROSSREFS
Cf. A078376.
Sequence in context: A364143 A346265 A188923 * A362090 A065261 A130848
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Nov 25 2002
STATUS
approved