A261159 List the length of chunks of letters different from 'e', when the sequence is spelled out in French: this is the lexicographically first such sequence of nonnegative integers.

5, 7, 1, 11, 2, 1, 3, 13, 2, 2, 1, 3, 12, 13, 0, 7, 3, 11, 1, 5, 41, 12, 0, 7, 1, 5, 11, 2, 1, 7

Offset

1,1

Comments

Called "Perec's sequence" by E. Angelini, with reference to Perec's 300 page novel "La disparition", lacking the letter 'e'.

Links

Table of n, a(n) for n=1..30.

Wikipedia, A void.

Example

The sequence spelled out in French reads: cinq, sEpt, un, onzE, dEux, un, trois, trEize, ...
Counting the length of chunks of letters different from 'E' ("cinqs", "ptunonz", "d", "uxuntroistr", ...) yields: 5, 7, 1, 11, ..., which reproduces the sequence.

Crossrefs

See A261158 for the English version.

Sequence in context: A251735 A232811 A316132 * A145737 A108763 A061415

Adjacent sequences: A261156 A261157 A261158 * A261160 A261161 A261162

Keyword

nonn,word,more

Author

Eric Angelini and M. F. Hasler, Aug 11 2015

Status

approved