Search: id:A109030
Results 1-1 of 1 results found.

%I A109030
%S A109030 46848,84864,217152,219456,232848,251712,257664,259776,274104,276048,
%T A109030 401472,415584,422820,428160,428736,447360,466752,485514,637824,650160,
%U A109030 654912,677952,808320,840672,846369,848232,963648
%N A109030 10-almost primes (A046314) whose digit reversal is different and also 
               has 10 prime factors (with multiplicity). "Emirp Tsolma-10.".
%C A109030 This sequence is the k = 10 instance of the series which begins with 
               k = 1 (emirps), k = 2 (emirpimes), k = 3 (emirp tsolma-3 = A109023), 
               k = 4 (emirp tsolma-4 = A109024), k = 5 (emirp tsolma-5 = A109025), 
               k = 6 (emirp tsolma-6 = A109026), k = 7 (emirp tsolma-7 = A109027), 
               k = 8 (emirp tsolma-8 = A109028), k = 9 (emirp tsolma-9 = A109029).
%C A109030 The Mathematica code for this was written by Ray Chandler who extended 
               this sequence. He also has more values.
%D A109030 Jonathan Vos Post, "1066 and All That: Emirp Tsolma-3 and Related Integer 
               Sequences." Forthcoming paper on this sequence.
%H A109030 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               AlmostPrime.html">Almost Prime</a>.
%H A109030 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Emirp.html">Emirp</a>.
%H A109030 Eric Weisstein and Jonathan Vos Post, <a href="http://mathworld.wolfram.com/
               Emirpimes.html">Emirpimes.</a>
%e A109030 a(1) = 46848 is in this sequence because 46848 = 2^8 * 3 * 61 is a 10-almost 
               prime and reverse(46848) = 84864 = 2^7 * 3 * 13 * 17 is also a 10-almost 
               prime.
%Y A109030 Cf. A046314, A006567, A097393, A109018, A109023-A109029, A109031-A109131.
%Y A109030 Sequence in context: A132642 A052359 A066359 this_sequence A093223 A069370 
               A166003
%Y A109030 Adjacent sequences: A109027 A109028 A109029 this_sequence A109031 A109032 
               A109033
%K A109030 nonn,base
%O A109030 1,1
%A A109030 Jonathan Vos Post (jvospost3(AT)gmail.com), Jun 16 2005

Search completed in 0.001 seconds