OFFSET
0,3
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 0..90
PROG
(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a257173 = fromJust . (`elemIndex` a248737_list)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Apr 17 2015
STATUS
approved