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A020709 Pisot sequence E(4,10). 0
4, 10, 25, 63, 159, 401, 1011, 2549, 6427, 16205, 40859, 103021, 259755, 654941, 1651355, 4163693, 10498251, 26470077, 66741115, 168279693, 424297003, 1069813853, 2697406939, 6801187117, 17148375179, 43237565181, 109018319419, 274876578253, 693068226283 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..28.

FORMULA

a(n) = 3a(n-1) - 2a(n-2) + 2a(n-3) (holds at least up to n = 1000).

CROSSREFS

See A008776 for definitions of Pisot sequences.

Sequence in context: A033539 A020748 A021004 * A020734 A225301 A097136

Adjacent sequences:  A020706 A020707 A020708 * A020710 A020711 A020712

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified June 19 05:13 EDT 2013. Contains 226390 sequences.