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Search: id:A133073
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| A133073 |
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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, 3, 44, 279, 1104, 3275, 8028, 17199, 33344, 59859, 101100, 162503, 250704, 373659, 540764, 762975, 1052928, 1425059, 1895724, 2483319, 3208400, 4093803, 5164764, 6449039, 7977024, 9781875
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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a(n) = n^5+n^3+n^2
G.f.: x*(3+60*x^2+30*x^3+26*x+x^4)/(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)=17199 because 7^5=16807, 7^3=343, 7^2=49 and we can write 16807+343+49=17199.
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CROSSREFS
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Cf. A000290, A000578, A000584, A011379, A045991, A100019.
Sequence in context: A009720 A076361 A130408 this_sequence A055539 A046946 A092545
Adjacent sequences: A133070 A133071 A133072 this_sequence A133074 A133075 A133076
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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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