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 A017277 a(n) = (10*n)^9. 1
 0, 1000000000, 512000000000, 19683000000000, 262144000000000, 1953125000000000, 10077696000000000, 40353607000000000, 134217728000000000, 387420489000000000, 1000000000000000000, 2357947691000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..500 Index entries for linear recurrences with constant coefficients, signature (10,-45,120,-210,252,-210,120,-45,10,-1). MATHEMATICA (10*Range[0, 20])^9 (* or *) LinearRecurrence[ {10, -45, 120, -210, 252, -210, 120, -45, 10, -1}, {0, 1000000000, 512000000000, 19683000000000, 262144000000000, 1953125000000000, 10077696000000000, 40353607000000000, 134217728000000000, 387420489000000000}, 20] (* Harvey P. Dale, Jun 09 2018 *) PROG (MAGMA) [(10*n)^9: n in [0..20]]; // Vincenzo Librandi, Jul 29 2011 (PARI) a(n)=(10*n)^9 \\ Charles R Greathouse IV, Jul 29 2011 CROSSREFS Sequence in context: A250600 A250864 A017181 * A017517 A204593 A017649 Adjacent sequences:  A017274 A017275 A017276 * A017278 A017279 A017280 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified December 4 13:03 EST 2021. Contains 349526 sequences. (Running on oeis4.)