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A070268
Numbers n such that mu(n) + mu(n+1) + mu(n+2) = -3.
3
29, 41, 101, 137, 229, 281, 429, 433, 617, 641, 645, 741, 821, 969, 1021, 1085, 1129, 1221, 1309, 1433, 1489, 1581, 1597, 1605, 1613, 1697, 1741, 1877, 1885, 2013, 2053, 2081, 2085, 2109, 2161, 2237, 2265, 2309, 2337, 2377, 2381, 2397, 2409, 2633, 2657
OFFSET
1,1
COMMENTS
All terms == 1 (mod 4). - Robert Israel, Feb 17 2019
LINKS
MAPLE
with(numtheory): A070268:=n->`if`(mobius(n)+mobius(n+1)+mobius(n+2)=-3, n, NULL): seq(A070268(n), n=1..10^4); # Wesley Ivan Hurt, Feb 05 2017
PROG
(PARI) for(n=1, 1000, if(moebius(n)+moebius(n+1)+moebius(n+2)==-3, print1(n, ", ")))
CROSSREFS
Cf. A063838.
Sequence in context: A214405 A104072 A357175 * A139870 A173874 A308795
KEYWORD
nonn
AUTHOR
Sharon Sela (sharonsela(AT)hotmail.com), May 09 2002
EXTENSIONS
More terms from Benoit Cloitre, May 13 2002
STATUS
approved