OFFSET
1,1
COMMENTS
First term 268992 = A098515(9).
The first term not divisible by 9 is a(163) = 9384375. The first term not divisible by 3 is a(193) = 10504375. - Charles R Greathouse IV, Oct 11 2013
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
EXAMPLE
268992=2^6*3^2*467, 268992+9=269001=3^8*41;
338976=2^5*3^2*11*107, 338976+9=338985=3^7*5*31.
PROG
(PARI) isok(n) = (bigomega(n) == 9) && (bigomega(n+9) == 9); \\ Michel Marcus, Oct 11 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Nov 13 2006
EXTENSIONS
More terms from Michel Marcus, Oct 11 2013
STATUS
approved