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A366687 Number of prime factors of 11^n + 1 (counted with multiplicity). 7
1, 3, 2, 5, 2, 4, 4, 4, 3, 7, 3, 7, 4, 6, 5, 8, 3, 6, 5, 7, 4, 7, 4, 7, 7, 6, 3, 10, 6, 6, 6, 7, 4, 13, 6, 11, 7, 5, 4, 11, 5, 6, 9, 5, 6, 13, 6, 7, 5, 8, 6, 11, 3, 7, 9, 13, 7, 12, 6, 7, 8, 6, 4, 13, 3, 10, 8, 9, 7, 14, 8, 6, 10, 8, 8, 13, 6, 12, 12, 7, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = bigomega(11^n+1) = A001222(A034524(n)).
MATHEMATICA
PrimeOmega[11^Range[70]+1]
PROG
(PARI) a(n)=bigomega(11^n+1)
CROSSREFS
Sequence in context: A208889 A127750 A112528 * A154421 A057034 A075410
KEYWORD
nonn
AUTHOR
Sean A. Irvine, Oct 16 2023
STATUS
approved

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Last modified May 26 18:12 EDT 2024. Contains 372840 sequences. (Running on oeis4.)