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A088807 Number of prime factors of p^p - 1 where p is prime. 1
1, 2, 3, 4, 4, 5, 4, 3, 6, 9, 4, 9, 7, 6, 5, 7, 5, 8, 9, 7, 15, 8, 6, 10, 12, 13 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..27.

PROG

(PARI) omegaptop(n, m) = { sr=0; forprime(x=2, n, y=omega(x^x-m); print1(y", "); sr += 1.0/y; ); print(); }

CROSSREFS

Cf. A088730.

Sequence in context: A303998 A319712 A319715 * A036371 A036370 A005208

Adjacent sequences:  A088804 A088805 A088806 * A088808 A088809 A088810

KEYWORD

nonn

AUTHOR

Cino Hilliard, Nov 23 2003

EXTENSIONS

More terms from Ray Chandler, Feb 21 2004

STATUS

approved

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Last modified March 29 01:25 EDT 2020. Contains 333104 sequences. (Running on oeis4.)