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 A070383 a(n) = 5^n mod 36. 1
 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29, 1, 5, 25, 17, 13, 29 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS G. C. Greubel, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,1). [R. J. Mathar, Apr 20 2010] FORMULA a(n) = (1/3)*{17*(n mod 6)-5*[(n+1) mod 6]+5*[(n+2) mod 6]+7*[(n+3) mod 6]-7*[(n+4) mod 6]+[(n+5) mod 6]}, with n>=0. - Paolo P. Lava, Apr 16 2010 From R. J. Mathar, Apr 20 2010: (Start) a(n) = a(n-6). G.f.: ( -1-5*x-25*x^2-17*x^3-13*x^4-29*x^5 ) / ( (x-1)*(1+x)*(1+x+x^2)*(x^2-x+1) ). (End) MATHEMATICA PowerMod[5, Range[0, 50], 36] (* G. C. Greubel, Mar 16 2016 *) PROG (Sage) [power_mod(5, n, 36) for n in xrange(0, 78)] # Zerinvary Lajos, Nov 26 2009 (PARI) a(n) = lift(Mod(5, 36)^n); \\ Altug Alkan, Mar 16 2016 CROSSREFS Sequence in context: A070378 A070384 A070377 * A070061 A070376 A036139 Adjacent sequences:  A070380 A070381 A070382 * A070384 A070385 A070386 KEYWORD nonn AUTHOR N. J. A. Sloane, May 12 2002 STATUS approved

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