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A198402 5^n*n^5. 1
0, 5, 800, 30375, 640000, 9765625, 121500000, 1313046875, 12800000000, 115330078125, 976562500000, 7863818359375, 60750000000000, 453238525390625, 3282617187500000, 23174285888671875, 160000000000000000, 1083264923095703125 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (30,-375,2500,-9375,18750,-15625).

FORMULA

G.f.: 5*x*(625*x^4+3250*x^3+1650*x^2+130*x+1) / (5*x-1)^6. - Colin Barker, Apr 30 2013

PROG

(MAGMA) [5^n*n^5: n in [0..20]]

(PARI) a(n)=5^n*n^5 \\ Charles R Greathouse IV, Jul 06 2017

CROSSREFS

Cf. A007758, A062074, A062075, A097206, A098803, A098880.

Sequence in context: A299226 A300038 A060713 * A214450 A085706 A190350

Adjacent sequences:  A198399 A198400 A198401 * A198403 A198404 A198405

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Oct 27 2011

STATUS

approved

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Last modified October 21 16:50 EDT 2019. Contains 328302 sequences. (Running on oeis4.)