OFFSET
1,1
LINKS
Hiroaki Yamanouchi, Table of n, a(n) for n = 1..72
EXAMPLE
Cf. A257478.
PROG
(Haskell)
a257475 n = f 1 a256918_list where
f i (u:us) = (if u == n then g else f) (i + 1) us
g j (v:vs) = if v == n then j else g (j + 1) vs
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Apr 25 2015
EXTENSIONS
a(38)-a(57) from Hiroaki Yamanouchi, May 03 2015
STATUS
approved