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A072922 Spell English name for n, then interpret as number in base 36. 6
1652100, 31946, 38760, 49537526, 732051, 724298, 36969, 47723135, 24375809, 1097258, 38111, 882492287, 1807948346, 2310701170991, 1242626638127, 33766692143, 62095095599, 1165465079087, 1137277763375, 1842973464623 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Base 36 extrapolates the use of the letters of the alphabet as placeholders, as in the more familiar base-16's A, B, C, D, E, F, all the way to Z.

REFERENCES

M. J. Halm, Sequences (Re)discovered, Mpossibilities 81 (Aug. 2002).

LINKS

Table of n, a(n) for n=0..19.

Landon Curt Noll, The English Name of a Number

Eric Weisstein's World of Mathematics, Number

Robert G. Wilson v, English names for the numbers from 0 to 11159 without spaces or hyphens .

M. J. Halm, Jootsy Calculus.

FORMULA

In base 36 A = 10, B = 11, ..., Z = 35

EXAMPLE

a(0) = 1652100 because zero (base 36) = z(36^3) + e(36^2) + r(36) + o = 35(46656) + 14(1296) + 27(36) + 24 = 1632960 + 18144 + 972 + 24 = 1652100 (base 10).

MATHEMATICA

lst = {zero, one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty, twentyone, twentytwo, twentythree, twentyfour, twentyfive, twentysix, twentyseven, twentyeight, twentynine, thirty, thirtyone, thirtytwo, thirtythree, thirtyfour, thirtyfive, thirtysix, thirtyseven, thirtyeight, thirtynine, forty, fortyone, fortytwo, fortythree, fortyfour, fortyfive, fortysix, fortyseven, fortyeight, fortynine, fifty};

f[ls_] := FromDigits[ToString@ls, 36]; f@# & /@ lst (* Robert G. Wilson v, Aug 26 2007 *)

CROSSREFS

Cf. A038842.

Sequence in context: A205985 A258953 A144127 * A204762 A061127 A183798

Adjacent sequences:  A072919 A072920 A072921 * A072923 A072924 A072925

KEYWORD

word,base,nonn

AUTHOR

Michael Joseph Halm, Aug 19 2002

STATUS

approved

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Last modified November 21 07:05 EST 2017. Contains 294991 sequences.