

A089589


Iban numbers (the letter i is banned from the English name of the number).


7



0, 1, 2, 3, 4, 7, 10, 11, 12, 14, 17, 20, 21, 22, 23, 24, 27, 40, 41, 42, 43, 44, 47, 70, 71, 72, 73, 74, 77, 100, 101, 102, 103, 104, 107, 110, 111, 112, 114, 117, 120, 121, 122, 123, 124, 127, 140, 141, 142, 143, 144, 147, 170, 171, 172, 173, 174, 177, 200, 201
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OFFSET

1,3


COMMENTS

Blind numbers.  Cino Hilliard, May 03 2004


LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
Roel and Bas van Dijk, Numerals package, Hackage (Haskell packages)
Eric Weisstein's World of Mathematics, Iban Number
Index entries for sequences related to number of letters in n


PROG

(Haskell)
import Data.Maybe (fromJust)
import Data.Text (Text); import qualified Data.Text as T (all)
import Text.Numeral.Grammar.Reified (defaultInflection)
import qualified Text.Numeral.Language.EN as EN  see link
a089589 n = a089589_list !! (n1)
a089589_list = filter (T.all (/= 'i') . numeral) [0..] where
numeral :: Integer > Text
numeral = fromJust . EN.gb_cardinal defaultInflection
 Reinhard Zumkeller, Jan 23 2015


CROSSREFS

Cf. A006933 (ban e), A008521 (ban o), A008523 (ban t), A089590 (ban u).
Sequence in context: A182832 A082673 A080724 * A047546 A139759 A030292
Adjacent sequences: A089586 A089587 A089588 * A089590 A089591 A089592


KEYWORD

nonn,easy,word,fini,changed


AUTHOR

Eric W. Weisstein, Nov 09 2003


STATUS

approved



