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A176575 Second edge diagonal of table A176577. (The first edge diagonal is A099627). 1

%I #2 Mar 31 2012 13:23:39

%S 1,10,36,42,136,146,170,292,528,546,586,682,1092,1170,2080,2114,2184,

%T 2186,2340,2346,2730,4228,4370,4706,8256,8322,8456,8458,8738,8740,

%U 8746,9362,9386,10922,16644,16912,16914,17476,17482,18724,18730,32896,33026

%N Second edge diagonal of table A176577. (The first edge diagonal is A099627).

%C Sequence A176575 can be useful in reconstructing table A176577.

%C Consider, for example, diagonal 10 18 21 34 37 43 66 69 75 ...

%C the highest power of two less than 10 is 8 and 10-8 is 2 (the "residual").

%C Construct the sequence 10,18,34,66,... by doubling each term and subtracting

%C the residual. The remaining terms are formed by using the rule "2x+1":

%C 10..18..34..66..

%C 21..37..69..

%C 43..75..

%C 87..

%e A176577 begins

%e 1

%e 2...10

%e 3...18...36

%e 4...21...68...42

%e 5...34...73...74..136

%e 7...37..132...85..264..146

%e so a(n) begins:

%e 1..10..36..42..136..146..

%Y Cf. A099627 A176577

%K nonn,uned

%O 1,2

%A _Alford Arnold_, May 13 2010

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)