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A060403 Each term is the previous term plus the number of letters in the previous number, as conventionally spelled out in American English. 7
1, 4, 8, 13, 21, 30, 36, 45, 54, 63, 73, 85, 95, 105, 119, 137, 158, 178, 200, 210, 223, 244, 263, 283, 304, 320, 338, 361, 381, 402, 416, 434, 455, 475, 497, 519, 538, 560, 576, 597, 619, 637, 658, 678, 700, 712, 730, 748, 770, 789, 811, 829, 851, 871, 893 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Increases more slowly than A160395 since American English does not use 'and' to separate hundreds from the rest of the number. E.g., 619 = "six hundred nineteen" in American English but "six hundred and nineteen" in British English. - Carl R. White, May 12 2009

LINKS

Table of n, a(n) for n=1..55.

EXAMPLE

a(2)=4 because a(1)=1 and 4 is 1 plus the number of letters in "one," 3.

CROSSREFS

Cf. A005589 See A139097 for another version.

For British English see A160395. - Carl R. White, May 12 2009

Sequence in context: A172050 A312219 A312220 * A139097 A160395 A038793

Adjacent sequences:  A060400 A060401 A060402 * A060404 A060405 A060406

KEYWORD

nonn,word,easy

AUTHOR

Kevin Langdon (kevin.langdon(AT)polymath-systems.com), Apr 05 2001

EXTENSIONS

More terms from Carl R. White, May 12 2009

STATUS

approved

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Last modified March 20 09:50 EDT 2019. Contains 321345 sequences. (Running on oeis4.)