[seqfan] Re: Colour, drag and drop

[Prof. Dr. Alois Heinz]

The first 155 items:

1, 2, 4, 6, 9, 11, 15, 17, 20, 25, 27, 29, 33, 36, 40, 42, 46, 49, 51, 54,
60, 63, 65, 68, 70, 75, 77, 82, 85, 89, 92, 94, 97, 101, 103, 106, 110,
113, 115, 118, 125, 127, 132, 134, 136, 140, 143, 146, 148, 153, 157, 159,
162, 165, 169, 173, 178, 180, 182, 186, 189, 191, 194, 197, 202, 204, 206,
208, 214, 220, 224, 226, 229, 234, 236, 240, 243, 245, 247, 249, 252, 259,
262, 264, 268, 271, 274, 277, 281, 283, 287, 289, 291, 295, 299, 303, 306,
311, 315, 317, 321, 323, 325, 330, 332, 335, 339, 343, 345, 347, 350, 353,
360, 363, 367, 370, 373, 376, 379, 382, 387, 390, 392, 395, 399, 402, 405,
407, 410, 412, 417, 421, 429, 431, 434, 436, 438, 441, 444, 447, 449, 451,
454, 457, 461, 463, 469, 474, 479, 482, 485, 489, 492, 494, 498

Alois

Eric Angelini schrieb:

>Hello SeqFans,
>please have a look here:
>http://www.cetteadressecomportecinquantesignes.com/ColourDragDrop.htm
>
>---
>
>Modus operandi :
> 
>Write the seq. N of natural numbers:
> 
>N =  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 ...
> 
>Start with n=1 and apply the following rules :
> 
>Rule one: at step 'n' colour in yellow 'n' and in grey the nth integer at the right of 'n'
>Rule two: drag the grey integer next to the yellow integer and keep the rest of the sequence as it is
>Rule three: go back to Rule one and apply to the re-ordered set of naturals.
>
>(...)
>
>Emerging sequence : 1, 2, 4, 6, 9, 11, 15, 17, 20, 25 ...
>
>---
>
>Best,
>É.
>
>
>
>
>
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>
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>  
>