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A134631
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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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1
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0, 4, 144, 1152, 4960, 15300, 38304, 83104, 162432, 293220, 497200, 801504, 1239264, 1850212, 2681280, 3787200, 5231104, 7085124, 9430992, 12360640, 15976800, 20393604, 25737184, 32146272, 39772800, 48782500, 59355504, 71686944, 85987552, 102484260, 121420800, 143058304, 167675904, 195571332, 227061520
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n) = 5*n^5 - 3*n^3 + 2*n^2.
G.f.: 4x*(1+30x+87x^2+32x^3)/(1-x)^6. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 14 2007
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EXAMPLE
| a(4)=4960 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=4960.
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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, A133071.
Sequence in context: A053891 A053897 A017294 * A036511 A186720 A060870
Adjacent sequences: A134628 A134629 A134630 * A134632 A134633 A134634
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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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