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 A079705 3p^2 where p runs through the primes. 4
 12, 27, 75, 147, 363, 507, 867, 1083, 1587, 2523, 2883, 4107, 5043, 5547, 6627, 8427, 10443, 11163, 13467, 15123, 15987, 18723, 20667, 23763, 28227, 30603, 31827, 34347, 35643, 38307, 48387, 51483, 56307, 57963, 66603, 68403, 73947, 79707 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 FORMULA a(n) = 3*A001248(n) = A003415(A030078(n)). - Reinhard Zumkeller, Jun 26 2011 EXAMPLE For n=2, 3*prime(2)^2 = 3*3^2 = 27. MATHEMATICA 3 #^2 & /@ Prime[Range[40]] 3 Prime[Range[30]]^2 (* Vincenzo Librandi, Mar 27 2014 *) PROG (PARI) forprime (p=2, 100, print1(p^2*3", ")) (MAGMA) [3*p^2: p in PrimesUpTo(200)]; // Vincenzo Librandi, Mar 27 2014 CROSSREFS Sequence in context: A047723 A151542 A069550 * A068721 A228181 A196208 Adjacent sequences:  A079702 A079703 A079704 * A079706 A079707 A079708 KEYWORD easy,nonn AUTHOR Jon Perry, Jan 31 2003 EXTENSIONS More terms from Harvey P. Dale, Feb 13 2003 Offset corrected by Vincenzo Librandi, Mar 27 2014 STATUS approved

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Last modified March 20 05:34 EDT 2019. Contains 321344 sequences. (Running on oeis4.)