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A155916
Prime factors of odd Fibonacci numbers.
3
3, 5, 7, 11, 13, 29, 37, 41, 43, 47, 59, 67, 71, 73, 89, 97, 101, 103, 113, 127, 131, 139, 149, 151, 157, 163, 179, 191, 193, 199, 223, 233, 239, 251, 263, 269, 277, 281, 283, 307, 311, 313, 331, 337, 347, 353, 359, 367, 373, 389, 397, 401, 419, 431, 433, 449
OFFSET
1,1
COMMENTS
Primes not in A133247.
LINKS
MAPLE
filter:= proc(p) local a, b, i;
if not isprime(p) then return false fi;
a:= 0: b:= 1;
for i from 2 do
a, b:= b, (a+b) mod p;
if b = 0 then
if i mod 3 <> 0 then return true
elif a = 1 then return false
fi
fi
od:
end proc:
select(filter, [seq(i, i=3..1000, 2)]); # Robert Israel, Nov 20 2016
CROSSREFS
Sequence in context: A259730 A254673 A343976 * A038979 A179739 A093988
KEYWORD
nonn
AUTHOR
Tanya Khovanova, Jan 30 2009
STATUS
approved