A025554 - OEIS

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A025554

a(n) = (Sum_{i=0..n-1} (-1)^i/b(i)) * LCM{b(i): i=0..n-1}, where b(i) = C(i,floor(i/2)).

%I #8 Sep 06 2019 04:10:38

%S 1,0,1,1,2,7,17,107,113,329,334,3644,3659,47462,95029,94973,95001,

%T 1614765,1614891,30681669,30682299,30681969,30682134,705687102,

%U 705688092,3528437886,3528439173,10585315517,10585316518,306974164007,613948343029

%N a(n) = (Sum_{i=0..n-1} (-1)^i/b(i)) * LCM{b(i): i=0..n-1}, where b(i) = C(i,floor(i/2)).

%K nonn

%O 1,5

%A _Clark Kimberling_

%E Title corrected by _Sean A. Irvine_, Sep 05 2019