A108987 French self-ranked numbers.

1, 2, 8, 12, 20, 21, 22, 29, 42, 52, 58, 85, 91, 142, 185, 208, 212, 229, 243, 291, 351, 420, 452, 514, 720, 821, 1142, 1212, 1243, 1254, 1391, 1420, 2021, 2058, 2124, 2125, 2291, 2413, 3514, 3912, 4208, 4720, 5212, 5452, 5821, 8219, 9121, 9351, 12125

Offset

0,2

Links

Table of n, a(n) for n=0..48.

Example

"1" is in the sequence because if you replace each letter of "un" ("one") by its rank in the alphabet you get the string 2114 which contains at least a "1".
"trois" (3) produces the string 201815919 which contains no "3" - thus "3" is not a "french self-ranked number".

Crossrefs

Sequence in context: A235353 A057265 A099418 * A035405 A280867 A111058

Adjacent sequences: A108984 A108985 A108986 * A108988 A108989 A108990

Keyword

base,easy,nonn,word

Author

Eric Angelini, Jul 28 2005

Status

approved