OFFSET
1,1
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Duodecimal
Wikipedia, Duodecimal
EXAMPLE
143 = 11*12^1 + 11*12^0 = 'BB', therefore 143 is a term.
MATHEMATICA
Select[Range[250], Max[IntegerDigits[#, 12]]>9&] (* Harvey P. Dale, Oct 20 2020 *)
PROG
(Haskell)
import Data.List (unfoldr)
a102488 n = a102488_list !! (n-1)
a102488_list = filter (any (> 9) . unfoldr (\x ->
if x == 0 then Nothing else Just $ swap $ divMod x 12)) [1..]
-- Reinhard Zumkeller, Apr 18 2011
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, Jan 12 2005
STATUS
approved