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Smallest positive number m such that m == i (mod i+1) for all 1<=i<=n.
1

%I #8 Dec 07 2015 09:59:24

%S 1,1,5,11,59,59,419,839,2519,2519,27719,27719,360359,360359,360359,

%T 720719,12252239,12252239,232792559,232792559,232792559,232792559,

%U 5354228879,5354228879,26771144399,26771144399,80313433199,80313433199

%N Smallest positive number m such that m == i (mod i+1) for all 1<=i<=n.

%F For n>=2, a(n) = A003418(n+1)-1.

%Y Except for the first term, a duplicate of A070198.

%Y Cf. A070198, A003418.

%K nonn

%O 1,3

%A _Zak Seidov_, Sep 03 2006

%E Edited by _N. J. A. Sloane_, Nov 18 2007, at the suggestion of _Max Alekseyev_.