

A146755


Alliterative numbers: Positive integers n such that all words in n's name begin with the same letter; ignore numbers with oneword names.


2



22, 23, 32, 33, 44, 45, 54, 55, 66, 67, 76, 77, 88, 99, 2000, 2002, 2003, 2010, 2012, 2013, 2020, 2022, 2023, 2030, 2032, 2033, 3000, 3002, 3003, 3010, 3012, 3013, 3020, 3022, 3023, 3030, 3032, 3033, 10000, 10002, 10003, 10010, 10012, 10013, 10020
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OFFSET

1,1


COMMENTS

Use (American if different) English. Names of these numbers then exhibit alliteration (as in poetry or literature), hence the suggested name. Hyphens connecting words and any use of the word "and" is ignored. If, for example, the normal "American System" (short scale with no "milliard", "billiard", etc.) with the suggested extension by reusable prefixes as developed and described by L.C. Noll (see link) is then used, this sequence is both welldefined and infinite.


LINKS

Table of n, a(n) for n=1..45.
Landon Curt Noll, The English Name of a Number
Wikipedia, Names of Large Numbers


EXAMPLE

22 is the first term because its English name, the compound word "twentytwo", is considered here to be two words and each word starts with the letter "t". 1555 is not a term because it is treated here as "one thousand five hundred fifty five", not "fifteen fifty five" as, for example, the year 1555 would be called.


CROSSREFS

Cf. A051108.
Sequence in context: A092619 A092624 A091404 * A106556 A106554 A118297
Adjacent sequences: A146752 A146753 A146754 * A146756 A146757 A146758


KEYWORD

nonn,word


AUTHOR

Rick L. Shepherd, Nov 01 2008


STATUS

approved



