A105386 Morse code alphabet where "." = 0 and "-" = 1, binary converted to decimal.

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

Offset: 1

Author

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

Keywords

• full
• nonn
• fini

Comments

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

Examples

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

Links

• Omniglot, Morse Code

Crossrefs

Cf. A105387, A059852 (Morse alphabet), A000120 (binary weight), A008777 (number of dots and dashes in Morse code for n-th letter).

Programs

PARI

A105386=[fromdigits([d-1|d<-digits(t,3)],2)|t<-A059852] \\ M. F. Hasler, Jun 23 2020

Extensions

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