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A267067 Primes p such that mu(p-2) = 1; that is, p-2 is squarefree and has an even number of prime factors, where mu is the Moebius function (A008683). 1
3, 17, 23, 37, 41, 53, 59, 67, 71, 79, 89, 97, 113, 131, 157, 163, 179, 211, 223, 239, 251, 269, 293, 307, 311, 331, 337, 367, 373, 379, 383, 397, 409, 419, 439, 449, 487, 491, 499, 503, 521, 547, 593, 599, 613, 631, 673, 683, 691, 701, 709, 719, 733, 739 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

From Robert Israel, Jan 10 2016 (Start)

Includes all members of A063638 except 11.

The first terms not in A063638 are 3 and 1367. (End)

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

E. W. Weisstein, The World of Mathematics: Moebius Function

MAPLE

select(p -> isprime(p) and numtheory:-mobius(p-2)=1, [seq(i, i=3..1000, 2)]); # Robert Israel, Jan 10 2016

MATHEMATICA

Select[Prime[Range[200]], MoebiusMu[# - 2] == 1 &]

PROG

(MAGMA) [n: n in [3..1000] | IsPrime(n) and MoebiusMu(n-2) eq 1];

CROSSREFS

Cf. A008683, A063638, A088179.

Sequence in context: A272176 A082372 A273407 * A322490 A206626 A128107

Adjacent sequences:  A267064 A267065 A267066 * A267068 A267069 A267070

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Jan 10 2016

STATUS

approved

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Last modified September 22 21:07 EDT 2020. Contains 337291 sequences. (Running on oeis4.)