A104057 -id:A104057 - cp's OEIS frontend

A169979 The individual digits in A104057.

2, 0, 2, 3, 1, 5, 0, 2, 6, 5, 1, 8, 1, 5, 0, 2, 0, 2, 3, 1, 5, 0, 2, 0, 8, 1, 8, 5, 5, 0, 1, 5, 1, 4, 5, 0, 6, 9, 2, 2, 5, 0, 2, 6, 5, 1, 8, 1, 5, 0, 2, 0, 2, 3, 1, 5, 0, 1, 9, 9, 2, 4, 0, 6, 9, 2, 2, 5, 0, 1, 5, 1, 4, 5, 0, 5, 6, 7, 8, 2, 0, 0, 1, 5, 1, 4, 5, 0, 6, 9, 2, 2, 5, 0, 2, 6, 5, 1, 8

Offset: 1

N. J. A. Sloane, Aug 18 2010

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...

Original entry on oeis.org

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

Eric Angelini, Mar 02 2005

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

Cf. A169978.

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

/* 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}

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

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

cp's OEIS Frontend

A169979 The individual digits in A104057.

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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...

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