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A135962 a(n) = binomial(floor(n*(sqrt(5)+1)/2), n) for n>=0. 1

%I

%S 1,1,3,4,15,56,84,330,495,2002,8008,12376,50388,203490,319770,1307504,

%T 2042975,8436285,34597290,54627300,225792840,354817320,1476337800,

%U 6107086800,9669554100,40225345056,166509721602,265182149218

%N a(n) = binomial(floor(n*(sqrt(5)+1)/2), n) for n>=0.

%t Table[Binomial[Floor[n GoldenRatio],n],{n,0,30}] (* _Harvey P. Dale_, Aug 05 2011 *)

%o (PARI) a(n)=binomial(floor(n*(sqrt(5)+1)/2),n)

%Y Cf. A135963.

%K nonn

%O 0,3

%A _Paul D. Hanna_, Dec 11 2007

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Last modified September 20 01:04 EDT 2020. Contains 337228 sequences. (Running on oeis4.)