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A131267 Self-generated: 1=1*1; 2=1*1+1*1; 5=1*2+2*1+1*1; 12=1*5+2*2+2*1+1*1; 35=1*12+2*5+5*2+2*1+1*1; 97=1*35+2*12+5*5+5*2+2*1+1*1; ... 1

%I #5 Aug 26 2015 00:35:56

%S 1,2,5,12,35,97,300,886,2884,9038,30119,97044,330178,1093187,3760857,

%T 12642484,44030988,150422819,527900140,1820782288,6438077940,

%U 22426049665,79685359338,279367999565,997882736275,3522643337418

%N Self-generated: 1=1*1; 2=1*1+1*1; 5=1*2+2*1+1*1; 12=1*5+2*2+2*1+1*1; 35=1*12+2*5+5*2+2*1+1*1; 97=1*35+2*12+5*5+5*2+2*1+1*1; ...

%p A131267 := proc(n) option remember ; local a,i ; if n <=0 then RETURN(1) ; else a :=0 ; for i from 0 to n do a := a+ A131267( min(i,n-i))*A131267(n-i-1) ; od: RETURN(a) ; fi ; end: seq(A131267(n),n=0..30) ; # _R. J. Mathar_, Oct 25 2007

%K nonn

%O 0,2

%A _Paul Curtz_, Sep 28 2007

%E More terms from _R. J. Mathar_, Oct 25 2007

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Last modified May 3 03:31 EDT 2024. Contains 372204 sequences. (Running on oeis4.)