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A169899 Carryless sum of {distinct numbers i in the range 1 <= i <= n such that there is a number j in the range 1 <= j <= n for which the carryless product i*j equals n}. 6

%I #10 Oct 04 2012 10:29:13

%S 1,3,4,7,9,6,8,1,0,11,12,13,14,15,16,17,18,19,10,44,22,48,24,42,26,67,

%T 28,63,20,44,42,40,48,46,44,42,40,48,46,63,62,61,60,69,68,8,66,8,64,

%U 55,52,53,8,4,54,55,58,0,0,64,20,66,24,68,28,21,22,25,26,88,82,86,80,84,88,82

%N Carryless sum of {distinct numbers i in the range 1 <= i <= n such that there is a number j in the range 1 <= j <= n for which the carryless product i*j equals n}.

%C Counted without multiplicity.

%H David Applegate, Marc LeBrun and N. J. A. Sloane, <a href="http://neilsloane.com/doc/carry1.pdf">Carryless Arithmetic (I): The Mod 10 Version</a>.

%H <a href="/index/Ca#CARRYLESS">Index entries for sequences related to carryless arithmetic</a>

%Y Cf. A000005, A169891-A169899.

%K nonn,base

%O 1,2

%A _David Applegate_, _Marc LeBrun_ and _N. J. A. Sloane_, Jul 11 2010

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Last modified April 25 09:31 EDT 2024. Contains 371967 sequences. (Running on oeis4.)