login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A020734 Pisot sequence L(4,10). 2
4, 10, 25, 63, 159, 402, 1017, 2573, 6510, 16472, 41679, 105461, 266850, 675216, 1708513, 4323086, 10938795, 27678662, 70035898, 177213300, 448406526, 1134612428, 2870933600, 7264383443, 18381221638, 46510390257, 117686215012, 297783895756, 753488830979 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Colin Barker, Table of n, a(n) for n = 0..1000

PROG

(PARI) pisotL(nmax, a1, a2) = {

  a=vector(nmax); a[1]=a1; a[2]=a2;

  for(n=3, nmax, a[n] = ceil(a[n-1]^2/a[n-2]));

  a

}

pisotL(50, 4, 10) \\ Colin Barker, Aug 07 2016

CROSSREFS

See A008776 for definitions of Pisot sequences.

Sequence in context: A020748 A021004 A020709 * A225301 A298412 A289245

Adjacent sequences:  A020731 A020732 A020733 * A020735 A020736 A020737

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 23 11:12 EST 2018. Contains 299564 sequences. (Running on oeis4.)