A104056 Each number is the rank in the alphabet of a letter (and "0" stands for a space). After substitution one reads (in English): "one five one four five zero six nine two two five zero ..." which is the succession of the digits of the sequence itself: 1 5 1 4 5 0 6 9 2 2 5 0...

15, 14, 5, 0, 6, 9, 22, 5, 0, 15, 14, 5, 0, 6, 15, 21, 18, 0, 6, 9, 22, 5, 0, 26, 5, 18, 15, 0, 19, 9, 24, 0, 14, 9, 14, 5, 0, 20, 23, 15, 0, 20, 23, 15, 0, 6, 9, 22, 5, 0, 26, 5, 18, 15, 0, 15, 14, 5, 0, 6, 9, 22, 5, 0, 15, 14, 5, 0, 6, 15, 21, 18, 0, 6, 9, 22, 5, 0, 26, 5, 18, 15, 0, 19, 9, 24

Offset

1,1

Comments

The only other such sequence starts with: 20,23,15,0,26,5,18,15,0... (which reads "two zero...")

Links

Table of n, a(n) for n=1..86.

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. */
A104056(Nmin, a=[], pos=1)={ while( Nmin > #a=concat( a, concat( apply( digit2seq, eval( Vec( Str( if( #a, a[pos++ ], 15) )))))), ); a}
(End)

Crossrefs

Cf. A169978.

Cf. A104057 (Same rule, but starting with 20). [From M. F. Hasler, Aug 18 2010]

Sequence in context: A072348 A317422 A129786 * A131285 A130677 A343924

Adjacent sequences: A104053 A104054 A104055 * A104057 A104058 A104059

Keyword

base,easy,nonn,word

Author

Eric Angelini, Mar 02 2005

Extensions

Typo in sequence corrected by D. S. McNeil, Aug 18 2010

Extended beyond a(55) by M. F. Hasler, Aug 18 2010

Status

approved