A103857 Greatest prime factor of prime(n)! - prime(n)# + 1.

1, 1, 13, 4831, 10867, 380879, 67872713, 29248641596329, 5375659901, 2260742008115495258127626261, 39302553278734052383226897, 2202226772995090243, 363934772650919, 125129894757902719183, 1330939456978870860802004244587

Offset

1,3

Links

Amiram Eldar, Table of n, a(n) for n = 1..22

Reinhard Zumkeller, p(n)! - p(n)# + 1.

Formula

a(n) = A006530(A103855(n)).

Crossrefs

Cf. A006530, A103855, A103856, A103892.

Sequence in context: A006541 A189647 A185674 * A263160 A373884 A032463

Adjacent sequences: A103854 A103855 A103856 * A103858 A103859 A103860

Keyword

nonn,changed

Author

Reinhard Zumkeller, Feb 20 2005

Status

approved