A216824 Largest prime factor of the n-th Giuga number A007850(n).

5, 13, 41, 59, 47057, 4447, 775807, 713863, 29133437, 3892535183, 110725121051, 1456230512169437

Offset

1,1

Comments

See A007850 for comments, references, and links.

Links

Table of n, a(n) for n=1..12.

Example

A007850(1) = 30 = 2*3*5 is the first Giuga number, so a(1) = 5.

Crossrefs

Cf. A007850, A216823, A236434.

Sequence in context: A121872 A228922 A025490 * A230812 A087938 A103729

Adjacent sequences: A216821 A216822 A216823 * A216825 A216826 A216827

Keyword

nonn,hard,more

Author

Jonathan Sondow, Sep 17 2012

Status

approved