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Search: id:A047208
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| A047208 |
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Numbers that are congruent to {0, 4} mod 5. |
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+0
4
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| 0, 4, 5, 9, 10, 14, 15, 19, 20, 24, 25, 29, 30, 34, 35, 39, 40, 44, 45, 49, 50, 54, 55, 59, 60, 64, 65, 69, 70, 74, 75, 79, 80, 84, 85, 89, 90, 94, 95, 99, 100, 104, 105, 109, 110, 114, 115, 119, 120, 124, 125, 129
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Also solutions to 3^x + 5^x == 2 mod 11. - Cino Hilliard (hillcino368(AT)gmail.com), May 18 2003
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LINKS
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Cino Hilliard, solutions to 3^x + 5^x == 2 mod 11/
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FORMULA
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G.f.: x^2(4+x)/((1-x)^2(1+x)). a(n)=a(n-2)+5. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 24 2009]
a(n)=(1/4)*[3-3*(-1)^n+10*n], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Feb 10 2009]
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CROSSREFS
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Cf.: A010685 (first differences). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 24 2009]
Adjacent sequences: A047205 A047206 A047207 this_sequence A047209 A047210 A047211
Sequence in context: A064473 A001983 A143575 this_sequence A032381 A050036 A059582
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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