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A038803
Largest number with n prime factors all of different lengths.
0
7, 679, 676963, 6751351999, 675074437732009, 675062961466567555847, 6750623539099022359361997377, 675062279653043305846953784718028853, 675062237124119687705225516359940415764182261, 6750622348964143051956305469326962117763788889781985387
OFFSET
1,1
FORMULA
a(n) = Product_{k=1..n} prev_prime(10^k). - Sean A. Irvine, Feb 14 2021
CROSSREFS
Sequence in context: A174853 A228928 A332167 * A144957 A163016 A261696
KEYWORD
base,nonn
AUTHOR
EXTENSIONS
a(10) and typos in terms corrected by Sean A. Irvine, Feb 14 2021
STATUS
approved