A121934 Smallest positive number m such that m == i (mod i+1) for all 1<=i<=n.

1, 1, 5, 11, 59, 59, 419, 839, 2519, 2519, 27719, 27719, 360359, 360359, 360359, 720719, 12252239, 12252239, 232792559, 232792559, 232792559, 232792559, 5354228879, 5354228879, 26771144399, 26771144399, 80313433199, 80313433199

Offset: 1

Author

Zak Seidov, Sep 03 2006

Keywords

• nonn

Crossrefs

Except for the first term, a duplicate of A070198.

Cf. A070198, A003418.

Formula

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

Extensions

Edited by N. J. A. Sloane, Nov 18 2007, at the suggestion of Max Alekseyev.