login
A324208
Numbers with exactly eight distinct exponents in their prime factorization, or eight distinct parts in their prime signature.
0
25968760179275365452000000, 29023908435660702564000000, 30690352939143613716000000, 31435867585438600284000000, 33959147926744708668000000, 34300982696689921212000000, 36356264250985511632800000, 37151479873700163972000000, 38953140268913048178000000, 39267640824717421116000000
OFFSET
1,1
EXAMPLE
29023908435660702564000000 = 2^8 * 3^7 * 5^6 * 7^5 * 11^4 * 13^3 * 17 * 19^2 is in the sequence as there are exactly 8 distinct exponents; 1 through 8.
PROG
(PARI) is(n) = #Set(factor(n)[, 2]) == 8
KEYWORD
nonn
AUTHOR
David A. Corneth, Feb 17 2019
STATUS
approved