OFFSET
1,1
COMMENTS
These numbers are all primorials. Primorials necessarily must be the minimum terms in this sequence (given the nature of Euler's Totient function).
Essentially the same as A091456. - R. J. Mathar, Aug 17 2009
LINKS
EXAMPLE
2 => 2/ Totient(2) = 2 (so it is both the first and 2nd entry of the sequence) 210 => 210 / Totient(210) = 210/48 >= 4
PROG
(PARI) mm=3; n=2; m=1; forprime(x=3, 1000, n*=x; m*= (x-1); if (n\m >= mm, mm+=1; print(n))); /* Note: this will generate all terms of this sequence from the 3rd onward. The terms are easy to generate but grow very rapidly */
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Fred Schneider, Aug 13 2009
STATUS
approved