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A017320
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a(n) = (10*n + 4)^4.
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1
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256, 38416, 331776, 1336336, 3748096, 8503056, 16777216, 29986576, 49787136, 78074896, 116985856, 168896016, 236421376, 322417936, 429981696, 562448656, 723394816, 916636176, 1146228736, 1416468496
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OFFSET
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0,1
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (5, -10, 10, -5, 1).
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FORMULA
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G.f.: -16*(16 + 2321*x + 8891*x^2 + 3691*x^3 + 81*x^4)/(x-1)^5. - R. J. Mathar, Mar 20 2018
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MATHEMATICA
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(10 Range[0, 30]+4)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {256, 38416, 331776, 1336336, 3748096}, 30] (* Harvey P. Dale, Jan 08 2023 *)
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PROG
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(Magma) [(10*n+4)^4: n in [0..30] ]; // Vincenzo Librandi, Aug 01 2011
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CROSSREFS
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Sequence in context: A206744 A207791 A018798 * A187455 A181251 A132637
Adjacent sequences: A017317 A017318 A017319 * A017321 A017322 A017323
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane
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STATUS
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approved
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