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A081333 Numbers having more than one partition into two 3-smooth numbers. 3
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 48, 50, 51, 52, 54, 56, 57, 60, 63, 64, 66, 68, 70, 72, 73, 75, 76, 78, 80, 81, 82, 84, 88, 90, 96, 97, 99, 100, 102, 104, 105, 108, 112 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
David A. Corneth, Table of n, a(n) for n = 1..10177 (terms <= 10^15)
FORMULA
A081326(a(n)) > 1.
CROSSREFS
Sequence in context: A020705 A081313 A227983 * A026419 A026434 A181708
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Mar 19 2003
STATUS
approved

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)