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A340155 Numbers k such that A008480(k) > k. 0
326918592000, 435891456000, 653837184000, 871782912000, 980755776000, 1089728640000, 1307674368000, 1401079680000, 1508855040000, 1525620096000, 1569209241600, 1587890304000, 1634592960000, 1710035712000, 1852538688000, 1868106240000, 1961511552000, 2070484416000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(1) is given in the paper by Montgomery and Tenenbaum (2017).
If k is a term then all the numbers below k with the same prime signature as k are also terms. In particular A046523(k) is a term.
1710035712000 is the least term which is not in A025487.
Are there any odd terms in this sequence? If there are, the least of them is a term of A147516 and has more than 90 prime divisors (counted with multiplicity).
LINKS
Hugh L. Montgomery and Gérald Tenenbaum, On Multiplicative Compositions Of Integers, Mathematika, Vol. 63, No. 3 (2017), pp. 1081-1090; altermative link. See p. 1088.
EXAMPLE
326918592000 is a term since A008480(326918592000) = 358500542400 > 326918592000.
CROSSREFS
Sequence in context: A022263 A216907 A186911 * A172714 A080132 A080122
KEYWORD
nonn
AUTHOR
Amiram Eldar, Dec 29 2020
STATUS
approved

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Last modified June 20 03:21 EDT 2024. Contains 373512 sequences. (Running on oeis4.)