login
A078386
Squarefree kernels of numbers which can be written as sum of a positive square and a positive cube.
2
2, 5, 3, 10, 6, 17, 6, 26, 14, 31, 33, 6, 37, 43, 22, 10, 26, 57, 21, 65, 34, 6, 73, 38, 10, 82, 89, 91, 10, 101, 6, 113, 122, 42, 127, 2, 129, 134, 141, 145, 74, 30, 38, 161, 82, 170, 57, 174, 177, 185, 21, 14, 197, 102, 206, 26, 217, 110, 223, 15, 226, 58, 233, 241
OFFSET
1,1
COMMENTS
a(n)=A007947(A055394(n)).
EXAMPLE
3^2+3^3 = A055394(11) = 36, a(12) = A007947(A055394(11)) = A007947(36) = A007947(2^2*3^2) = 2*3 = 6.
CROSSREFS
Cf. A078387.
Sequence in context: A352188 A323637 A349637 * A163254 A277696 A143121
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Nov 25 2002
STATUS
approved