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1, 3, 9, 2, 6, 18, 4, 12, 11, 8, 24, 22, 16, 23, 19, 7, 21, 13, 14, 17, 1, 3, 9, 2, 6, 18, 4, 12, 11, 8, 24, 22, 16, 23, 19, 7, 21, 13, 14, 17, 1, 3, 9, 2, 6, 18, 4, 12, 11, 8, 24, 22, 16, 23, 19, 7, 21, 13, 14, 17, 1, 3, 9, 2, 6, 18, 4, 12, 11, 8, 24, 22, 16
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n)= a(n-1) -a(n-10) +a(n-11). G.f.: (1+2*x+6*x^2-7*x^3+4*x^4+12*x^5-14*x^6+8*x^7-x^8-3*x^9+17*x^10)/ ((1-x) * (x ^2+1) * (x^8-x^6+x^4-x^2+1)). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 13 2010]
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PROG
| (Other) sage: [power_mod(3, n, 25)for n in xrange(0, 73)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 25 2009]
(MAGMA) [3^n mod 25: n in [0..90]]; [From Vincenzo Librandi, Feb 06 2011]
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CROSSREFS
| Sequence in context: A091473 A019675 A050129 * A050104 A175993 A021722
Adjacent sequences: A070340 A070341 A070342 * A070344 A070345 A070346
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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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