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A180327 The non-common part of the larger number of an amicable pair. 2
71, 605, 731, 1391, 796, 1357, 139, 1151, 827, 4187, 527, 107, 8873, 2759, 239, 7697, 19147, 16873, 11021, 11303, 25429, 4601, 91271, 97481, 30743, 49949, 28459, 4961, 32171, 899, 83711, 85759, 86407, 89027, 81583, 195889, 99587, 8227, 56339, 122623 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Very few duplicates occur: for the amicable numbers less than 10^14, a number appears at most twice.

LINKS

T. D. Noe, Table of n, a(n) for n=1..10000

FORMULA

a(n) = A002046(n) / gcd(A002025(n),A002046(n)) = A002046(n) / A061469(n).

CROSSREFS

Cf. A180326 (non-common part of the smaller number of an amicable pair)

Sequence in context: A209953 A251390 A251383 * A201039 A142674 A089706

Adjacent sequences:  A180324 A180325 A180326 * A180328 A180329 A180330

KEYWORD

nonn

AUTHOR

T. D. Noe, Sep 07 2010

STATUS

approved

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Last modified December 17 09:23 EST 2018. Contains 318193 sequences. (Running on oeis4.)