login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A104057 Each number is the rank in the alphabet of a letter (and "0" stands for a space). After substitution one reads (in English): "two zero two three one five zero two six five one eight one five zero ..." which is the succession of the digits of the sequence itself: 2 0 2 3 1 5 0 2 6 5 1 8 1 5 0. 3
20, 23, 15, 0, 26, 5, 18, 15, 0, 20, 23, 15, 0, 20, 8, 18, 5, 5, 0, 15, 14, 5, 0, 6, 9, 22, 5, 0, 26, 5, 18, 15, 0, 20, 23, 15, 0, 19, 9, 24, 0, 6, 9, 22, 5, 0, 15, 14, 5, 0, 5, 9, 7, 8, 20, 0, 15, 14, 5, 0, 6, 9, 22, 5, 0, 26, 5, 18, 15, 0, 20, 23, 15, 0, 26, 5, 18, 15, 0, 20, 23, 15, 0, 20, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The only other such sequence starts with: 15 14 5 0 6 9 22 5 0... (which reads "one five...")

LINKS

Table of n, a(n) for n=1..85.

PROG

Contribution from M. F. Hasler, Aug 18 2010: (Start)

(PARI) /* helper function */

digit2seq(d) = { concat( apply( x->bitand(x, -97), Vec( Vecsmall( Str( [zero, one, two, three, four, five, six, seven, eight, nine][d+1])))), 0) }

/* compute this sequence to at least Nmin terms. */

A104057(Nmin, a=[], pos=1)={ while( Nmin > #a=concat( a, concat( apply( digit2seq, eval( Vec( Str( if( #a, a[pos++ ], 20) )))))), ); a}

(End)

CROSSREFS

Cf. A169979, A104056, A104059.

Sequence in context: A033906 A139357 A104059 * A268490 A153717 A045563

Adjacent sequences:  A104054 A104055 A104056 * A104058 A104059 A104060

KEYWORD

base,easy,nonn,word

AUTHOR

Eric Angelini, Mar 02 2005

EXTENSIONS

Corrected a(52) from 6 to 9, and extended beyond a(69) by M. F. Hasler, Aug 18 2010

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified March 25 08:59 EDT 2017. Contains 284060 sequences.