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A036326 Composite numbers n such that juxtaposition of prime factors of n has length 2. 8
4, 6, 9, 10, 14, 15, 21, 25, 35, 49 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
There are exactly 10 such numbers.
LINKS
CROSSREFS
Sequence in context: A113433 A115654 A362910 * A078972 A115652 A337372
KEYWORD
nonn,base,fini,full
AUTHOR
Patrick De Geest, Dec 15 1998
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)