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A013825
a(n) = 2^(5*n + 4).
2
16, 512, 16384, 524288, 16777216, 536870912, 17179869184, 549755813888, 17592186044416, 562949953421312, 18014398509481984, 576460752303423488, 18446744073709551616, 590295810358705651712, 18889465931478580854784
OFFSET
0,1
FORMULA
From Philippe Deléham, Nov 24 2008: (Start)
a(n) = 32*a(n-1), n > 0; a(0)=16.
G.f.: 16/(1-32*x).
a(n) = 16*A009976(n). (End)
MATHEMATICA
2^(5*Range[0, 20] + 4) (* or *) NestList[32#&, 16, 20] (* Harvey P. Dale, Sep 27 2015 *)
PROG
(Magma) [2^(5*n+4): n in [0..15]]; // Vincenzo Librandi, Jul 07 2011
CROSSREFS
Cf. A000079 (2^n), A016897 (5*n+4).
Sequence in context: A303424 A317514 A300179 * A099772 A041483 A041480
KEYWORD
nonn,easy
STATUS
approved