A025534 - OEIS

A025534

a(n) = (1/C(n,0) + 1/C(n,1) + ... + 1/C(n,k))*L, where k = [ n/2 ], L = LCM{C(n,0), C(n,1),..., C(n,n)}.

%I #3 Mar 30 2012 18:56:03

%S 1,1,3,4,17,13,77,128,334,292,2871,2588,30697,28211,26121,48640,

%T 773828,727240,13035026,12337264,11711342,11146396,244579999,

%U 233836352,1120013966,1074836584,3099540819,2983938788,83423830027,80530073893,2412760934249

%N a(n) = (1/C(n,0) + 1/C(n,1) + ... + 1/C(n,k))*L, where k = [ n/2 ], L = LCM{C(n,0), C(n,1),..., C(n,n)}.

%K nonn

%O 0,3

%A _Clark Kimberling_