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 A121913 a(n) = 2^(n*(2*n+3)) = 2^A014106(n). 2
 1, 32, 16384, 134217728, 17592186044416, 36893488147419103232, 1237940039285380274899124224, 664613997892457936451903530140172288, 5708990770823839524233143877797980545530986496 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Apparently the Hankel transform of A098441 = [1, 1, 33, 97, 1729, 8001, 105441, 627873, ...]. Hankel transform of A098430. - Philippe Deléham, Mar 01 2009 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..40 EXAMPLE Det(1) = 1; Det(1,1; 1,33) = 32; Det(1,1,33; 1,33,97; 33,97,1729) = 16384; ... MAPLE A121913:=n->2^(n*(2*n+3)); seq(A121913(k), k=0..20); # Wesley Ivan Hurt, Oct 24 2013 MATHEMATICA Table[2^(n(2n+3)), {n, 0, 20}] (* Wesley Ivan Hurt, Oct 24 2013 *) PROG (MAGMA) [2^(n*(2*n+3)): n in [0..10]]; // Vincenzo Librandi, Jul 05 2011 (PARI) vector(20, n, n--; 2^(n*(2*n+3))) \\ G. C. Greubel, Oct 08 2018 CROSSREFS Cf. A098430, A098441. Sequence in context: A230689 A248002 A091201 * A016877 A227659 A230914 Adjacent sequences:  A121910 A121911 A121912 * A121914 A121915 A121916 KEYWORD nonn,easy AUTHOR Philippe Deléham, Sep 02 2006 STATUS approved

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Last modified December 2 16:17 EST 2021. Contains 349445 sequences. (Running on oeis4.)