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A277084
Pisot sequence L(4,14).
2
4, 14, 49, 172, 604, 2122, 7456, 26198, 92052, 323444, 1136489, 3993295, 14031289, 49301911, 173232725, 608689936, 2138761243, 7514991434, 26405516950, 92781386582, 326007088306, 1145495077635, 4024940008834, 14142480741305, 49692606865991, 174605518105877
OFFSET
0,1
COMMENTS
There is no simple g.f. - Ilya Gutkovskiy, May 23 2019
FORMULA
a(n) = ceiling(a(n-1)^2/a(n-2)), a(0) = 4, a(1) = 14.
MATHEMATICA
RecurrenceTable[{a[0] == 4, a[1] == 14, a[n] == Ceiling[a[n - 1]^2/a[n - 2]]}, a, {n, 25}]
CROSSREFS
Cf. A008776 for definitions of Pisot sequences.
Cf. A010904 (Pisot sequence E(4,14)), A251221 (seems to be Pisot sequence P(4,14)).
Sequence in context: A071733 A291384 A010904 * A071737 A071741 A211305
KEYWORD
nonn,easy
AUTHOR
Ilya Gutkovskiy, Sep 29 2016
STATUS
approved