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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

Table of n, a(n) for n=1..10.

CROSSREFS

Cf. A036327-A036334, A046368.

Sequence in context: A320969 A113433 A115654 * A078972 A115652 A337372

Adjacent sequences:  A036323 A036324 A036325 * A036327 A036328 A036329

KEYWORD

nonn,base,fini,full

AUTHOR

Patrick De Geest, Dec 15 1998

STATUS

approved

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Last modified January 22 05:13 EST 2021. Contains 340360 sequences. (Running on oeis4.)