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A069465
Number of prime factors of prime(n)^n+1, with multiplicity.
2
1, 2, 4, 2, 4, 4, 4, 3, 11, 4, 7, 4, 6, 8, 10, 3, 5, 9, 5, 7, 10, 6, 8, 7, 8, 5, 12, 5, 8, 12, 13, 5, 12, 8, 13, 11, 6, 6, 13, 8, 11, 9, 9, 7, 19, 4, 8, 10, 10, 6, 16, 7, 5, 12, 13, 9, 14, 9, 3, 8, 10, 8, 21, 6, 17, 14, 6, 7, 14, 14, 8, 15, 9, 13, 21, 8, 18, 15, 5, 10, 20, 9
OFFSET
1,2
FORMULA
a(n) = A001222(A062006(n)).
EXAMPLE
A000040(10)^10+1 = 29^10+1 = 420707233300202 = 2*421*1061*470925821, therefore a(10) = 4 and A069464(10) = 4.
PROG
(PARI) a(n) = bigomega(prime(n)^n+1); \\ Michel Marcus, Feb 17 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Mar 24 2002
EXTENSIONS
More terms from Hugo Pfoertner, May 21 2004
Data corrected and a(46)-a(82) added using factordb.com by Amiram Eldar, Feb 17 2020
STATUS
approved