OFFSET
1,1
COMMENTS
Related to the inequality (54) in Ramanujan's paper about highly composite numbers (HCN) A002182, also used in A199337: This is the square root of the (not minimal) bound a(n)^2 above which all HCN are divisible by n, according to the right part of that inequality.
Like the highly composite numbers A002182, all terms in this sequence are a product of primorials.
LINKS
S. Ramanujan, Highly composite numbers, Proceedings of the London Mathematical Society ser. 2, vol. XIV, no. 1 (1915), pp 347-409. (DOI: 10.1112/plms/s2_14.1.347; a variant of better quality with an additional footnote is available at http://ramanujan.sirinudi.org/Volumes/published/ram15.html)
CROSSREFS
KEYWORD
nonn
AUTHOR
M. F. Hasler, Jan 03 2020
STATUS
approved