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 A086943 a(n) = k where R(k+7) = 3. 3
 23, 293, 2993, 29993, 299993, 2999993, 29999993, 299999993, 2999999993, 29999999993, 299999999993, 2999999999993, 29999999999993, 299999999999993, 2999999999999993, 29999999999999993, 299999999999999993 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS R(a(n)) = A086942(n). LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..300 FORMULA a(n) = 3*10^n - 7. MATHEMATICA FromDigits/@Table[Join[{2}, Table[9, {n}], {3}], {n, 0, 20}] (* Harvey P. Dale, Aug 21 2011 *) PROG (MAGMA) [3*10^n-7: n in [1..25] ]; // Vincenzo Librandi, Aug 22 2011 (Maxima) A086943(n):=3*10^n-7\$ makelist(A086943(n), n, 1, 17); /* Martin Ettl, Nov 08 2012 */ CROSSREFS Sequence in context: A268992 A199031 A125435 * A131273 A023021 A022651 Adjacent sequences:  A086940 A086941 A086942 * A086944 A086945 A086946 KEYWORD nonn,easy AUTHOR Ray Chandler, Jul 24 2003 STATUS approved

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Last modified October 13 16:10 EDT 2019. Contains 327966 sequences. (Running on oeis4.)