A097960 Arrange 1-digit numbers in Spanish in alphabetical order, then 2-digit numbers, then 3-digit numbers, etc.

0, 5, 4, 2, 9, 8, 6, 7, 3, 1, 14, 50, 55, 54, 52, 59, 58, 56, 57, 53, 51, 40, 45, 44, 42, 49, 48, 46, 47, 43, 41, 19, 18, 16, 17, 10, 12, 90, 95, 94, 92, 99, 98, 96, 97, 93, 91, 80, 85, 84, 82, 89, 88, 86, 87, 83, 81, 11, 15, 60, 65, 64, 62, 69, 68, 66, 67, 63, 61, 70, 75, 74, 72

Offset

1,2

Comments

In the 2007 Spanish film "Fermat's Room", a mathematician solves the "enigma" of how the numbers 5, 4, 2, 9, 8, 6, 7, 3, 1 are ordered. - Jonathan Sondow, Jul 20 2012

Links

Álvar Ibeas, Table of n, a(n) for n = 1..10001

Wikipedia, Fermat's Room

Example

0="cero", 5="cinco", 4="cuatro", 2="dos", 9="nueve", 8="ocho", 6="seis", 7="siete", 3="tres", 1="un".

Crossrefs

Cf. A000052 (English).

Sequence in context: A368274 A175838 A347272 * A019712 A020799 A199432

Adjacent sequences: A097957 A097958 A097959 * A097961 A097962 A097963

Keyword

easy,nonn,word,base

Author

Colin Backhurst (colin.backhurst(AT)ntlworld.com), Sep 21 2004

Status

approved