0,1

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

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

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.

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

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)

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 (rgwv@rgwv.com), Aug 26 2007 *)

Cf. A038842.

Sequence in context: A015334 A015377 A144127 this_sequence A061127 A136295 A126437

Adjacent sequences: A072919 A072920 A072921 this_sequence A072923 A072924 A072925

word,base,nonn

Michael Joseph Halm (hierogamous(AT)lycos.com), Aug 19 2002