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A138113 Smallest number with same number of divisors as n*a(n-1). +0
3
1, 2, 6, 24, 120, 720, 5040, 27720, 166320, 1441440 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n) = A140635(n*a(n-1)) - J. Lowell (jhbubby(AT)mindspring.com), May 20 2008

EXAMPLE

5040*8=40320 has 96 divisors, but smallest number with 96 divisors is 27720

CROSSREFS

Cf. A019505 (2*a(n-1)).

Cf. A140635.

Sequence in context: A090583 A108889 A033645 this_sequence A045977 A154655 A152369

Adjacent sequences: A138110 A138111 A138112 this_sequence A138114 A138115 A138116

KEYWORD

more,nonn

AUTHOR

J. Lowell (jhbubby(AT)mindspring.com), May 04 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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