cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A266604 Integers whose writing includes only the vowel "e" (in French).

Original entry on oeis.org

7, 30, 37, 100, 107, 130, 137, 700, 707, 730, 737
Offset: 1

Views

Author

Philippe Deléham, Jan 01 2016

Keywords

Comments

Sequence dedicated to G. Perec (1936 - 1982).

Examples

			sept, trente, trente-sept, cent, cent sept, cent trente, cent trente-sept, sept cent, sept cent sept, sept cent trente, sept cent trente-sept.
		

References

  • G. Perec, Les revenentes, Editions Julliard, Paris, 1972

Crossrefs

A322047 Numbers which when written in Finnish do not contain the letter "e".

Original entry on oeis.org

0, 1, 2, 5, 6, 11, 12, 15, 16, 100, 101, 102, 105, 106, 111, 112, 115, 116, 200, 201, 202, 205, 206, 211, 212, 215, 216, 500, 501, 502, 505, 506, 511, 512, 515, 516, 600, 601, 602, 605, 606, 611, 612, 615, 616, 1000
Offset: 1

Views

Author

N. J. A. Sloane, Dec 10 2018

Keywords

References

  • Suggested in a comment by "miskee11" on a Numberphile video that mentioned A006933.

Crossrefs

Programs

  • Mathematica
    aQ[n_] := StringCount[IntegerName[n, {"Finnish", "Words"}], {"e"}] == 0; Select[Range[0, 1000], aQ] (* Amiram Eldar, Dec 11 2018 *)
  • Python
    from num2words import num2words
    A322047_list = [n for n in range(10**4) if 'e' not in num2words(n,lang='fi')] # Chai Wah Wu, Dec 11 2018

Extensions

0 added by Chai Wah Wu, Dec 11 2018

A351799 Numbers which, when written in French, contain exactly one instance of the letter E.

Original entry on oeis.org

0, 2, 4, 7, 9, 11, 12, 14, 15, 17, 19, 21, 22, 24, 27, 29, 40, 43, 45, 46, 48, 50, 53, 55, 56, 58, 60, 63, 65, 66, 68, 70, 78, 80, 81, 83, 85, 86, 88, 90, 98, 100, 101, 103, 105, 106, 108, 110, 118, 120, 123, 125, 126, 128, 300, 301, 303, 305, 306, 308, 310
Offset: 1

Views

Author

Carole Dubois and Eric Angelini, Feb 19 2022

Keywords

Comments

ZERO(0) has one E (and is thus in the sequence), UN(1) has no E, DEUX(2) has one, TROIS(3) has none, QUATRE(4) has one E (and is thus in the sequence). etc.

Crossrefs

Cf. A006933 ('Eban' numbers), A349887 (exactly one instance in English), A349888 (exactly two instances in English),

Programs

  • Python
    from num2words import num2words
    from unidecode import unidecode
    def ok(n): return unidecode(num2words(n, lang='fr')).count("e") == 1
    print([k for k in range(311) if ok(k)]) # Michael S. Branicky, Feb 19 2022
Previous Showing 21-23 of 23 results.