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 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. 0
 1, 2, 6, 21, 43, 44, 50, 52, 53, 103, 121, 123, 197, 203, 204 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Starting with "0,1" would give another sequence. LINKS 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

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Last modified April 15 07:23 EDT 2021. Contains 342975 sequences. (Running on oeis4.)