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 GĂ©rald 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
KEYWORD
nonn
AUTHOR
Amiram Eldar, Dec 29 2020
STATUS
approved