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1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15, 1, 3, 9, 5, 15
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n)=(1/50)*{173*(n mod 5)-67*[(n+1) mod 5]+73*[(n+2) mod 5]-27*[(n+3) mod 5]+13*[(n+4) mod 5]}, with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Feb 25 2010]
a(n)= a(n-5). G.f.: (1+3*x+9*x^2+5*x^3+15*x^4)/ ((1-x) * (1+x+x^2+x^3+x^4)). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 13 2010]
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PROG
| (Other) sage: [power_mod(3, n, 22)for n in xrange(0, 95)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 25 2009]
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CROSSREFS
| Sequence in context: A084492 A084496 A084530 * A129145 A064471 A054509
Adjacent sequences: A070352 A070353 A070354 * A070356 A070357 A070358
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), May 12 2002
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