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 A072959 Using the US English names for the nonnegative integers, assign each letter a numerical value as in A073327 (A=1, B=2, ..., Z=26), treat the name as a base-27 integer, and convert to decimal. 2
 515904, 11318, 15216, 10799546, 129618, 125258, 14118, 10211981, 2839691, 282506, 14729, 78236429, 299309045, 212445531527, 68884716992, 2457249197, 7503281492, 5427065792075, 55893641747, 150135668600, 299310469 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS For names with spaces (e.g., ONE HUNDRED), treat each space as a '0', or placeholder, in the base-27 system. (Therefore ONE HUNDRED = 3196540902115084.) English name for the number n transliterated into Lee Sallows's base-27 system. REFERENCES M. J. Halm, Sequences (Re)discovered, Mpossibilities 81 (Aug. 2002). LINKS M. J. Halm, Jootsy Calculus. FORMULA In Sallows's system, space = 0, A = 1, B = 2, etc. to Z = 26, so that words and phrases, even number names, can be transformed into numbers. EXAMPLE a(1) = 11318 because o(729) + n(27) + e = 10935 + 378 + 5 = 11318. a(2) = 15216 because "TWO" in base 27 gives 20*27^2 + 23*27 + 15 = 15216. MAPLE lSallow27 := proc(s) local a, i, c ; a := 0 ; for i from 1 to length(s) do c := substring(s, i) ; if c = " " then a := 27*a ; else a := 27*a + StringTools[Ord](c) -96 ; fi; od: a ; end: enums := ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen", "twenty"]: for i from 1 to nops(enums) do printf("%d %d\n", i, lSallow27(enums[i])) ; od: CROSSREFS Sequence in context: A257431 A254240 A087096 * A048527 A255041 A255034 Adjacent sequences:  A072956 A072957 A072958 * A072960 A072961 A072962 KEYWORD easy,nonn,word AUTHOR Michael Joseph Halm, Aug 13 2002 EXTENSIONS Definition rephrased by Matthew Goers, Nov 03 2009 The old version of this sequence was wrong. Don Reble and R. J. Mathar supplied a corrected version. Edited by N. J. A. Sloane, Sep 20 2009 Edited by N. J. A. Sloane, Aug 15 2010 at the suggestion of D. S. McNeil STATUS approved

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Last modified October 16 03:37 EDT 2019. Contains 328040 sequences. (Running on oeis4.)