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 A109031 11-almost primes (A069272) whose digit reversal is different and also has 11 prime factors (with multiplicity). "Emirp Tsolma-11.". 3
 295245, 426816, 542592, 618624, 2112480, 2116224, 2150064, 2154816, 2196000, 2302560, 2327616, 2342277, 2388672, 2555280, 2576896, 2599200, 2768832, 2952288, 2952576, 4017216, 4074240, 4074840, 4076160, 4076568, 4078848 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS This sequence is the k = 11 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), k = 10 (emirp tsolma-10 = A109030). 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) = 295245 is in this sequence because 295245 = 3^10 * 5 is an 11-almost prime and reverse(295245) = 542592 = 2^7 * 3^3 * 157 is also an 11-almost prime. CROSSREFS Cf. A069272, A006567, A097393, A109018, A109023-A109030. Sequence in context: A258534 A258527 A254919 * A137817 A137818 A303357 Adjacent sequences:  A109028 A109029 A109030 * A109032 A109033 A109034 KEYWORD nonn,base AUTHOR Jonathan Vos Post, Jun 16 2005 EXTENSIONS a(5)-a(25) from Donovan Johnson, Apr 09 2010 STATUS approved

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Last modified October 21 05:28 EDT 2021. Contains 348141 sequences. (Running on oeis4.)