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A125898 Floor((quadronacci ratio)^n). 0
1, 3, 7, 13, 26, 51, 98, 190, 367, 708, 1364, 2630, 5071, 9775, 18841, 36318, 70007, 134942, 260110, 501380, 966441, 1862874, 3590806, 6921503, 13341626, 25716810, 49570746, 95550687, 184179871, 355018115, 684319420, 1319068095, 2542585503 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..33.

EXAMPLE

Quadronacci ratio is root 1.92756... (A086088) of polynomial x^4-x^3-x^2-x-1.

MATHEMATICA

With[{c=x/.FindRoot[x^4-x^3-x^2-x-1==0, {x, 1.9}, WorkingPrecision->100]}, Floor[c^Range[40]]] (* Harvey P. Dale, Mar 05 2012 *)

CROSSREFS

Cf. A125890-A125899.

Sequence in context: A283177 A284297 A205521 * A146928 A068673 A298360

Adjacent sequences:  A125895 A125896 A125897 * A125899 A125900 A125901

KEYWORD

nonn

AUTHOR

Artur Jasinski, Dec 13 2006

STATUS

approved

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Last modified August 8 11:12 EDT 2020. Contains 336293 sequences. (Running on oeis4.)