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Search: id:A133072
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| A133072 |
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n^5+n^3-n^2. Exponents are the prime numbers in decreasing order. |
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+0
3
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| 0, 1, 36, 261, 1072, 3225, 7956, 17101, 33216, 59697, 100900, 162261, 250416, 373321, 540372, 762525, 1052416, 1424481, 1895076, 2482597, 3207600, 4092921, 5163796, 6447981, 7975872, 9780625
(list; graph; listen)
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OFFSET
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0,3
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FORMULA
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a(n) = n^5+n^3-n^2
G.f.: x*(60*x^2+3*x^4+30*x+1+26*x^3)/(x-1)^6. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 14 2007
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EXAMPLE
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a(7)=17101 because 7^5=16807, 7^3=343, 7^2=49 and we can write 16807+343-49=17101.
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CROSSREFS
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Cf. A000290, A000578, A000584, A011379, A045991, A100019.
Sequence in context: A030165 A017342 A115332 this_sequence A115223 A135181 A014136
Adjacent sequences: A133069 A133070 A133071 this_sequence A133073 A133074 A133075
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KEYWORD
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nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Nov 01 2007
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