Error for A075802

[Franklin T. Adams-Watters]

A075802 (characteristic function for perfect powers) incorrectly claims to be multiplicative.  In fact, for example, a(8)=a(9)=1, but a(72)=0.

I have submitted sequence A112526 [from the dispenser] (characteristic function for powerful numbers), which is the multiplicative function that A075802 "tries" to be.
-- 
Franklin T. Adams-Watters
16 W. Michigan Ave.
Palatine, IL 60067
847-776-7645


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