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A180326
The non-common part of the smaller number of an amicable pair.
2
55, 592, 655, 1255, 779, 1343, 117, 1081, 685, 4183, 497, 85, 7975, 2233, 209, 7648, 17708, 14231, 10741, 11017, 23171, 4471, 70135, 77155, 22825, 44551, 27341, 4786, 31441, 893, 75049, 76241, 78023, 79453, 80417, 166991, 90763, 7645, 54982, 112277
OFFSET
1,1
COMMENTS
All terms are composite numbers. Very few duplicates occur: for the amicable numbers less than 10^14, a number appears at most twice.
FORMULA
a(n) = A002025(n) / gcd(A002025(n),A002046(n)) = A002025(n) / A061469(n).
CROSSREFS
Cf. A180327 (non-common part of the larger number of an amicable pair)
Sequence in context: A183320 A185028 A222797 * A119085 A119170 A119228
KEYWORD
nonn
AUTHOR
T. D. Noe, Sep 07 2010
STATUS
approved