OFFSET
1,1
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..1000
EXAMPLE
A105585 = ordered sequence of primes p and products 3*p: 2, 3, 5, 6, 7, 9, 11, 13, 15, 17, ... in which primes occupy ranks 4,6,9,11,...
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Feb 13 2018
STATUS
approved