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

1,2

COMMENTS

Hamming weight A000120(a(n)) gives number of dashes in the Morse code of the n-th 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([d-1|d<-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 n-th 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

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Last modified March 6 12:03 EST 2021. Contains 341847 sequences. (Running on oeis4.)