OFFSET
1,2
COMMENTS
Presumably, every natural number appears infinitely many times.
A258252(n) is a divisor of lcm(a(n-1), a(n)). The first case when it is a proper divisor (rather than that number itself) occurs at n=169.
LINKS
Ivan Neretin, Table of n, a(n) for n = 1..25000
CROSSREFS
KEYWORD
nonn
AUTHOR
Ivan Neretin, May 24 2015
STATUS
approved