A060110 - OEIS

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A060110

Numbers in Morse code, with 1 for a dot, 2 for a dash and 0 between digits/letters and then converted from base 3 to base 10.

242, 161, 134, 125, 122, 121, 202, 229, 238, 241, 117611, 117530, 117503, 117494, 117491, 117490, 117571, 117598, 117607, 117610, 97928, 97847, 97820, 97811, 97808, 97807, 97888, 97915, 97924, 97927, 91367, 91286, 91259, 91250, 91247

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,1

COMMENTS

The mentioned base 3 representation of the terms (digits 0, 1 and 2) is given in A060109. - M. F. Hasler, Jun 22 2020

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

FORMULA

A007089(a(n)) = A060109(n). - Reinhard Zumkeller, Feb 20 2015

EXAMPLE

a(10) = 12222022222[base 3] = 117611[base 10] since 1 is ".----" and 0 is "-----".

PROG

(Haskell)

a060110 = t . a060109 where

t 0 = 0

t n = if n == 0 then 0 else 3 * t n' + d where (n', d) = divMod n 10

-- Reinhard Zumkeller, Feb 20 2015

(PARI) apply( {A060110(n)=if(n>9, self()(n\10)*3^6)+fromdigits([1+(abs(k-n%10)>2)|k<-[3..7]], 3)}, [0..39]) \\ M. F. Hasler, Jun 23 2020

CROSSREFS

Cf. A008777, A059852, A060109.

Cf. A007089.

Sequence in context: A321821 A171242 A259092 * A113468 A220089 A039665

Adjacent sequences: A060107 A060108 A060109 * A060111 A060112 A060113

KEYWORD

base,nonn

AUTHOR

Henry Bottomley, Feb 28 2001

STATUS

approved

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