OFFSET
1,2
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..1000
PROG
(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a257078 = (+ 1) . fromJust . (`elemIndex` a248756_list)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Apr 15 2015
STATUS
approved