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Search: id:A057795
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A057795 Sum k!, where sum is over positive integers k <= n with GCD(k,n) = 1. +0
1
1, 1, 3, 7, 33, 121, 873, 5167, 45507, 367927, 4037913, 39921961, 522956313, 6267300607, 93445274187, 1313941673647, 22324392524313, 355693695038761, 6780385526348313, 122000794104233527, 2554923725074062867 (list; graph; listen)
OFFSET

1,3

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

EXAMPLE

a(6) = 1! + 5! = 121 because 1 and 5 are the positive integers that are <= 6 and are relatively prime to 6.

CROSSREFS

Sequence in context: A120566 A057480 A051256 this_sequence A054935 A024496 A081890

Adjacent sequences: A057792 A057793 A057794 this_sequence A057796 A057797 A057798

KEYWORD

nonn

AUTHOR

Leroy Quet Nov 05 2000

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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