A170836 First differences of A170837.

0, 1, 4, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16

Offset

0,3

Links

Table of n, a(n) for n=0..72.

Index entries for linear recurrences with constant coefficients, signature (1).

Formula

a(n) = 16 for n >= 3.

From Elmo R. Oliveira, Sep 26 2025: (Start)

G.f.: x*(1 + 3*x + 12*x^2)/(1 - x).

E.g.f.: 16*(exp(x) - 1) - 3*x*(5 + 2*x). (End)

Mathematica

PadRight[{0, 1, 4}, 100, 16] (* Paolo Xausa, Sep 27 2025 *)

Crossrefs

Cf. A170837.

Sequence in context: A029659 A265218 A331055 * A170875 A232342 A341199

Adjacent sequences: A170833 A170834 A170835 * A170837 A170838 A170839

Keyword

nonn,easy

Author

N. J. A. Sloane, Jan 05 2010, based on email from R. J. Mathar, Jun 02 2009

Status

approved