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A013887
a(n) = 18^(5*n + 2).
1
324, 612220032, 1156831381426176, 2185911559738696531968, 4130428534112329328517709824, 7804725584345565904628551916716032, 14747559712960682275277163588165279154176, 27866516911699690485530919446962290200798035968
OFFSET
0,1
FORMULA
a(n) = 1889568*a(n-1), a(0)=324. - Vincenzo Librandi, May 27 2011
PROG
(Magma) [18^(5*n+2): n in [0..10]]; // Vincenzo Librandi, May 27 2011
CROSSREFS
Cf. A001027.
Sequence in context: A132644 A202635 A013763 * A172198 A343080 A159976
KEYWORD
nonn
STATUS
approved