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 A017042 a(n) = (7*n + 5)^2. 8
 25, 144, 361, 676, 1089, 1600, 2209, 2916, 3721, 4624, 5625, 6724, 7921, 9216, 10609, 12100, 13689, 15376, 17161, 19044, 21025, 23104, 25281, 27556, 29929, 32400, 34969, 37636, 40401, 43264, 46225 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..10000 Index entries for linear recurrences with constant coefficients, signature (3,-3,1). FORMULA G.f.: -(25 + 69*x + 4*x^2)/(x-1)^3. - R. J. Mathar, Jul 14 2016 PROG (MAGMA) [(7*n+5)^2: n in [0..40] ]; // Vincenzo Librandi, Jul 18 2011 (PARI) a(n)=(7*n+5)^2 \\ Charles R Greathouse IV, Feb 13 2017 CROSSREFS Sequence in context: A184057 A235713 A072471 * A100255 A305269 A052501 Adjacent sequences:  A017039 A017040 A017041 * A017043 A017044 A017045 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified February 16 16:00 EST 2020. Contains 331961 sequences. (Running on oeis4.)