This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A083326 a(n) = 6^n-5^n+4^n. 1
 1, 5, 27, 155, 927, 5675, 35127, 218195, 1354527, 8386715, 51749127, 318163235, 1949418927, 11907099755, 72529083927, 440741148275, 2672816984127, 16180899860795, 97813978879527, 590561131589315, 3561890520050127 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS An alternating sum of decreasing powers. Binomial transform of A083325. LINKS Index entries for linear recurrences with constant coefficients, signature (15,-74,120). FORMULA G.f.: (1-10*x+26*x^2)/((1-4*x)*(1-5*x)*(1-6*x)). E.g.f. exp(6x)-exp(5x)+exp(4x). MAPLE A083326:=n->6^n-5^n+4^n: seq(A083326(n), n=0..30); # Wesley Ivan Hurt, Jan 24 2017 MATHEMATICA Table[6^n-5^n+4^n, {n, 0, 20}] (* Harvey P. Dale, Feb 19 2013 *) CROSSREFS Sequence in context: A134425 A305573 A184702 * A083880 A098409 A052227 Adjacent sequences:  A083323 A083324 A083325 * A083327 A083328 A083329 KEYWORD easy,nonn AUTHOR Paul Barry, Apr 27 2003 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 23 14:54 EDT 2019. Contains 328345 sequences. (Running on oeis4.)