This site is supported by donations to The OEIS Foundation.
Biquadratefull numbers
From OeisWiki
(Redirected from 4-full numbers)
Biquadratefull numbers are numbers for which all the prime factors exponents are at least 4, while the biquadrateful numbers are numbers for which at least one of the prime factors exponents is 4, thus are not biquadratefree numbers.