

A105386


Morse code alphabet where "." = 0 and "" = 1, binary converted to decimal.


3



1, 8, 10, 4, 0, 2, 6, 0, 0, 7, 5, 4, 3, 2, 7, 6, 13, 2, 0, 1, 1, 1, 3, 9, 11, 12
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OFFSET

1,2


COMMENTS

Hamming weight A000120(a(n)) gives number of dashes in the Morse code of the nth letter. A008777 allows to know how many leading zeros a term should have. A059852 is a better (unambiguous) variant.  M. F. Hasler, Jun 23 2020


LINKS

Table of n, a(n) for n=1..26.
Omniglot, Morse Code


EXAMPLE

a(3) = 'C' = ".." > 1010 (binary) = 10


PROG

(PARI) A105386=[fromdigits([d1d<digits(t, 3)], 2)t<A059852] \\ M. F. Hasler, Jun 23 2020


CROSSREFS

Cf. A105387, A059852 (Morse alphabet), A000120 (binary weight), A008777 (number of dots and dashes in Morse code for nth letter).
Sequence in context: A229196 A227571 A112590 * A124685 A105021 A273651
Adjacent sequences: A105383 A105384 A105385 * A105387 A105388 A105389


KEYWORD

full,nonn,fini


AUTHOR

Bryan Jacobs (bryanjj(AT)gmail.com), Apr 02 2005


EXTENSIONS

Name and crossrefs edited by M. F. Hasler, Jun 23 2020


STATUS

approved



