OFFSET
0,1
COMMENTS
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 0..10000
EXAMPLE
a(3)=2*5=10 because 5-2=3=A030173(3), where the latter terms are ordered by the increasing possible differences between two distinct primes and no smaller composite number has a difference of 3 between its least and greatest prime factors.
PROG
(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a135093 0 = 4
a135093 n = (+ 1) $ fromJust $ (`elemIndex` a046665_list) $ a030173 n
-- Reinhard Zumkeller, Jul 03 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Rick L. Shepherd, Nov 18 2007
STATUS
approved