[seqfan] Re: Two thingies with digits
Claudio Meller
claudiomeller at gmail.com
Mon Aug 15 14:38:25 CEST 2011
Hi Eric and seqfans:
The first 120 terms of the sequences are:
S = 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 17, 16, 18, 12, 21, 19, 25,
22, 23, 26, 24, 27, 28, 29, 31, 33, 32, 34, 35, 36, 38, 39, 41, 42, 43, 37,
44, 45, 46, 47, 48, 51, 149, 53, 49, 52, 54, 55, 56, 57, 59, 58, 63, 64, 65,
66, 67, 68, 62, 69, 72, 73, 75, 85, 77, 74, 76, 78, 82, 79, 83, 84, 86, 88,
89, 111, 91, 113, 87, 115, 93, 92, 94, 114, 108, 116, 106, 117, 105, 118,
104, 119, 81, 139, 61, 141, 95, 131, 71, 133, 109, 135, 107, 137, 143, 134,
136, 138, 154, 144, 145, 147, 146, 151, 96, 161, 97, 171
T = 1, 10, 11, 2, 20, 21, 3, 30, 31, 4, 40, 41, 5, 50, 51, 6, 60, 61, 7, 70,
71, 8, 80, 81, 9, 90, 91, 12, 32, 52, 72, 92, 22, 42, 62, 82, 13, 43, 73,
14, 53, 83, 23, 54, 93, 33, 63, 94, 44, 84, 34, 74, 24, 64, 15, 65, 25, 75,
35, 85, 45, 95, 55, 16, 76, 46, 17, 86, 56, 26, 87, 66, 36, 96, 67, 47, 27,
97, 77, 57, 37, 18, 98, 88, 78, 68, 58, 48, 38, 28, 19, 100, 101, 29, 200,
201, 39, 300, 301, 49, 400, 401, 59, 500, 501, 69, 600, 601, 79, 700, 701,
89, 800, 801, 99, 900, 901, 102, 302, 502, 702
2011/8/15 Eric Angelini <Eric.Angelini at kntv.be>
>
> [Franklin]:
> > Your S is certainly not a permutation of N.
> ... of course, Franklin, sorry to be so shortsighted :-((
> Best,
> E.
>
> ---
>
> >>
> First, could someone please compute a hundred or so terms of S
> where two consecutive terms of S share no digit with their sum?
>
> This is http://oeis.org/A129562 dropping the "increasing" cons-
> traint. I guess S starts:
>
> S = 1,2,3,4,5,6,7,8,9,11,13,14,15,17,16,18,12,21...
>
> Note that S is now a permutation of N. (Hope I didn't overlook S
> in the OEIS.)
>
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>
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>
--
Claudio Meller
http://grageasdefarmacia.blogspot.com
http://todoanagramas.blogspot.com/
http://simplementenumeros.blogspot.com/
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