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A013894 20^(5n+1). 1
20, 64000000, 204800000000000, 655360000000000000000, 2097152000000000000000000000, 6710886400000000000000000000000000, 21474836480000000000000000000000000000000, 68719476736000000000000000000000000000000000000, 219902325555200000000000000000000000000000000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..50

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (3200000).

FORMULA

a(n) = 3200000*a(n-1), a(0)=20. [Vincenzo Librandi, May 27 2011]

PROG

(MAGMA) [20^(5*n+1): n in [0..10]]; // Vincenzo Librandi, May 27 2011

CROSSREFS

Sequence in context: A051117 A180725 A013812 * A128671 A172766 A048948

Adjacent sequences:  A013891 A013892 A013893 * A013895 A013896 A013897

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified April 28 05:37 EDT 2017. Contains 285557 sequences.