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A156752 Floor(Catalan(n+1)/Catalan(n)). 1
1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..104.

Index entries for linear recurrences with constant coefficients, signature (1).

FORMULA

a(n)=floor(A000108(n+1)/A000108(n)) . G.f.: (1+x+x^4)/(1-x). a(0)=1, a(1)=a(2)=a(3)=2, a(n)=3 for n>3 .

CROSSREFS

Cf. A000108, A010701

Sequence in context: A319290 A230516 A192688 * A086673 A101787 A269024

Adjacent sequences:  A156749 A156750 A156751 * A156753 A156754 A156755

KEYWORD

nonn,easy

AUTHOR

Philippe Deléham, Feb 14 2009

STATUS

approved

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Last modified April 6 15:23 EDT 2020. Contains 333276 sequences. (Running on oeis4.)