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 A109030 10-almost primes (A046314) whose digit reversal is different and also has 10 prime factors (with multiplicity). "Emirp Tsolma-10.". 3
 46848, 84864, 217152, 219456, 232848, 251712, 257664, 259776, 274104, 276048, 401472, 415584, 422820, 428160, 428736, 447360, 466752, 485514, 637824, 650160, 654912, 677952, 808320, 840672, 846369, 848232, 963648 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 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). The Mathematica code for this was written by Ray Chandler who extended this sequence. He also has more values. REFERENCES Jonathan Vos Post, "1066 and All That: Emirp Tsolma-3 and Related Integer Sequences." Forthcoming paper on this sequence. LINKS Eric Weisstein's World of Mathematics, Almost Prime. Eric Weisstein's World of Mathematics, Emirp. Eric Weisstein and Jonathan Vos Post, Emirpimes. EXAMPLE 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. MATHEMATICA taQ[n_]:=Module[{idn=IntegerDigits[n], rev}, rev=Reverse[idn]; rev!=idn&&PrimeOmega[n] == 10 == PrimeOmega[FromDigits[rev]]]; Select[Range[ 1000000], taQ] (* Harvey P. Dale, May 03 2013 *) CROSSREFS Cf. A046314, A006567, A097393, A109018, A109023-A109029, A109031-A109131. Sequence in context: A066359 A234774 A236053 * A093223 A250688 A183601 Adjacent sequences:  A109027 A109028 A109029 * A109031 A109032 A109033 KEYWORD nonn,base AUTHOR Jonathan Vos Post, Jun 16 2005 STATUS approved

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Last modified October 21 02:26 EDT 2021. Contains 348141 sequences. (Running on oeis4.)