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 A139608 28n + 8. 3
 8, 36, 64, 92, 120, 148, 176, 204, 232, 260, 288, 316, 344, 372, 400, 428, 456, 484, 512, 540, 568, 596, 624, 652, 680, 708, 736, 764, 792, 820, 848, 876, 904, 932, 960, 988, 1016, 1044, 1072, 1100, 1128, 1156, 1184, 1212, 1240, 1268, 1296, 1324, 1352, 1380 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Numbers of the 8th column of positive numbers in the square array of nonnegative and polygonal numbers A139600. Also, numbers of the 8th column in the square array A057145. REFERENCES A. H. Beiler, Recreations in the Theory of Numbers, Dover, NY, 1964, p. 189. - From N. J. A. Sloane, Dec 01 2012 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..10000 Index to sequences with linear recurrences with constant coefficients, signature (2,-1). FORMULA a(0)=8, a(1)=36, a(n)=2*a(n-1)-a(n-2). - Harvey P. Dale, Dec 14 2012 MATHEMATICA Range[8, 7000, 28] (* From Vladimir Joseph Stephan Orlovsky, Jul 13 2011 *) LinearRecurrence[{2, -1}, {8, 36}, 50] (* or *) NestList[28+#&, 8, 50] (* Harvey P. Dale, Dec 14 2012 *) PROG (MAGMA) [4*(7*n + 2): n in [0..50]]; // Vincenzo Librandi, Jul 13 2011 (PARI) a(n)=28*n+8 \\ Charles R Greathouse IV, Oct 05 2011 CROSSREFS Sequence in context: A184294 A057345 A048740 * A009923 A187287 A224159 Adjacent sequences:  A139605 A139606 A139607 * A139609 A139610 A139611 KEYWORD easy,nonn,changed AUTHOR Omar E. Pol, Apr 27 2008 STATUS approved

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