A257923 Number of prime factors of the n-th Giuga number A007850(n).

3, 4, 4, 5, 6, 6, 7, 7, 7, 8, 8, 8

Offset

1,1

Comments

Row lengths of the table A236434 of prime factors of the Giuga numbers.

Links

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

Formula

a(n) = A001221(A007850(n)).

Prog

(PARI) a(n)=omega(A007850(n))

Crossrefs

Sequence in context: A079107 A205837 A262872 * A288178 A023963 A121500

Adjacent sequences: A257920 A257921 A257922 * A257924 A257925 A257926

Keyword

nonn,more,hard

Author

M. F. Hasler, Jul 13 2015

Status

approved