A104142 - OEIS

A104142

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

1, 2, 6, 10, 24, 73, 104, 200, 300, 401, 473

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OFFSET

1,2

COMMENTS

Numbers without "and" are used here. Starting with "0,1" would give another sequence.

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

1 2 6 = "one+two+six" = 9 letters; 9 is 3^2.

300 401 473 = "three hundred + four hundred one + four hundred seventy three" = 49 letters; 49 is 7^2.

CROSSREFS

Sequence in context: A370587 A200220 A188224 * A376843 A258143 A369290

Adjacent sequences: A104139 A104140 A104141 * A104143 A104144 A104145

KEYWORD

base,easy,nonn,word

AUTHOR

Eric Angelini, Mar 07 2005

STATUS

approved