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A013897
a(n) = 20^(5*n + 4).
1
160000, 512000000000, 1638400000000000000, 5242880000000000000000000, 16777216000000000000000000000000, 53687091200000000000000000000000000000, 171798691840000000000000000000000000000000000, 549755813888000000000000000000000000000000000000000
OFFSET
0,1
FORMULA
a(n) = 3200000*a(n-1), a(0)=160000. - Vincenzo Librandi, May 27 2011
MATHEMATICA
20^(5*Range[0, 10]+4) (* or *) NestList[3200000#&, 160000, 10] (* Harvey P. Dale, Feb 15 2016 *)
PROG
(Magma) [20^(5*n+4): n in [0..10]]; // Vincenzo Librandi, May 27 2011
CROSSREFS
Cf. A009964.
Sequence in context: A223483 A202936 A251971 * A205742 A206674 A205518
KEYWORD
nonn
STATUS
approved