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A073356
Greatest common divisor of squarefree kernel of n and sum of squarefree kernels of numbers <= n.
1
1, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 5, 2, 17, 1, 1, 2, 7, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 3, 1, 1, 6, 1, 1, 3, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 53, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 1, 1, 1, 14, 1, 1, 1, 2, 1, 1, 7, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1
OFFSET
1,3
COMMENTS
a(n) = GCD(A007947(n), A073355(n)).
CROSSREFS
Sequence in context: A184532 A016557 A073572 * A093032 A072115 A210650
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jul 29 2002
STATUS
approved