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A134630
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5*n^5 - 3*n^3 - 2*n^2. Coefficients and exponents are the prime numbers in decreasing order.
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0
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0, 0, 128, 1116, 4896, 15200, 38160, 82908, 162176, 292896, 496800, 801020, 1238688, 1849536, 2680496, 3786300, 5230080, 7083968, 9429696, 12359196, 15975200, 20391840, 25735248, 32144156, 39770496, 48780000, 59352800, 71684028, 85984416, 102480896, 121417200, 143054460, 167671808, 195566976, 227056896
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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FORMULA
| a(n) = 5*n^5 - 3*n^3 - 2*n^2.
G.f.: 4*x^2*(32+87*x+30*x^2+x^3)/(-1+x)^6. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 14 2007
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EXAMPLE
| a(4)=4896 because 4^5=1024, 5*1024=5120, 4^3=64, 3*64=192, 4^2=16, 2*16=32 and we can write 5120-192-32=4896.
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PROG
| (MAGMA)[5*n^5-3*n^3 -2*n^2: n in [0..50]][From V. Librandi, Dec 14 2010]
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CROSSREFS
| Cf. A000290, A000578, A000584, A045991, A100019, A133070.
Sequence in context: A130813 A206278 A100628 * A133061 A188822 A181211
Adjacent sequences: A134627 A134628 A134629 * A134631 A134632 A134633
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KEYWORD
| nonn
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Nov 04 2007
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EXTENSIONS
| More terms from Vincenzo Librandi, Dec 14 2010
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