login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A008520 Numbers that contain the letter 'e'. 6
0, 1, 3, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 33, 35, 37, 38, 39, 41, 43, 45, 47, 48, 49, 51, 53, 55, 57, 58, 59, 61, 63, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

A085513(a(n)) > 0. - Reinhard Zumkeller, Jan 23 2015

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Roel and Bas van Dijk, Numerals package, Hackage (Haskell packages)

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 (any)

import Text.Numeral.Grammar.Reified (defaultInflection)

import qualified Text.Numeral.Language.EN as EN  -- see link

a008520 n = a008520_list !! (n-1)

a008520_list = filter (T.any (== 'e') . numeral) [0..] where

   numeral :: Integer -> Text

   numeral = fromJust . EN.gb_cardinal defaultInflection

-- Reinhard Zumkeller, Jan 23 2015

CROSSREFS

Cf. A006933 (complement), A085513.

Sequence in context: A086674 A137203 A102890 * A217129 A336340 A100318

Adjacent sequences:  A008517 A008518 A008519 * A008521 A008522 A008523

KEYWORD

nonn,word

AUTHOR

N. J. A. Sloane

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 5 20:00 EDT 2022. Contains 357261 sequences. (Running on oeis4.)