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A139771 Exponents of prime factorization are factorial numbers in descending order. 0
1, 2, 6, 60, 20160, 23543886643200, 41101884684637603112076605638990269409595309948928000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = 2^(n!) * 3^((n-1)!) * 5^((n-2)!) * ... * p(n+1)^(0!);
EXAMPLE
a(4) = (2^6)(3^2)(5)(7) = 20160
PROG
J Program
*/ @ (p: ^ (!@|.)) @ i.
CROSSREFS
Sequence in context: A156503 A077175 * A129665 A173606 A134706 A145756
KEYWORD
easy,nonn
AUTHOR
Dan Brown (dbrown(AT)certicom.com), May 20 2008
STATUS
approved

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Last modified April 17 03:42 EDT 2024. Contains 371756 sequences. (Running on oeis4.)