A104143 Take any three consecutive terms and write them down (in French): their letters sum up to a square number. This is the slowest strictly increasing such sequence.

1, 2, 6, 21, 43, 44, 50, 52, 53, 103, 121, 123, 197, 203, 204

Offset

1,2

Comments

Starting with "0,1" would give another sequence.

Links

Table of n, a(n) for n=1..15.

Example

1 2 6 = "un+deux+six" = 9 letters; 9 is 3^2.
197 203 204 = "cent quatre-vingt-dix-sept + deux cent trois + deux cent quatre" = 49 letters; 49 is 7^2.

Crossrefs

Sequence in context: A063753 A066893 A004192 * A088812 A228398 A228394

Adjacent sequences: A104140 A104141 A104142 * A104144 A104145 A104146

Keyword

base,easy,nonn,word

Author

Eric Angelini, Mar 07 2005

Status

approved