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A014005 Pisot sequence E(9,19), a(n)=[ a(n-1)^2/a(n-2)+1/2 ]. 0
9, 19, 40, 84, 176, 369, 774, 1624, 3407, 7148, 14997, 31465, 66016, 138507, 290599, 609700, 1279199, 2683861, 5630953, 11814185, 24787095, 52005287, 109111208, 228923950, 480300565, 1007708598 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

REFERENCES

D. W. Boyd, Some integer sequences related to the Pisot sequences, Acta Arithmetica, 34 (1979), 295-305.

D. W. Boyd, Linear recurrence relations for some generalized Pisot sequences, Advances in Number Theory ( Kingston ON, 1991) 333-340, Oxford Sci. Publ., Oxford Univ. Press, New York, 1993.

FORMULA

Known not to satisfy any linear recurrence.

CROSSREFS

Sequence in context: A145958 A039299 A159697 * A058510 A043122 A043902

Adjacent sequences:  A014002 A014003 A014004 * A014006 A014007 A014008

KEYWORD

nonn

AUTHOR

Simon Plouffe (simon.plouffe(AT)gmail.com)

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Last modified February 17 14:19 EST 2012. Contains 206038 sequences.