A359373 Nonmultiples of 4 that have an odd number of prime factors (with multiplicity).

2, 3, 5, 7, 11, 13, 17, 18, 19, 23, 27, 29, 30, 31, 37, 41, 42, 43, 45, 47, 50, 53, 59, 61, 63, 66, 67, 70, 71, 73, 75, 78, 79, 83, 89, 97, 98, 99, 101, 102, 103, 105, 107, 109, 110, 113, 114, 117, 125, 127, 130, 131, 137, 138, 139, 147, 149, 151, 153, 154, 157, 162, 163, 165, 167, 170, 171, 173, 174

Offset

1,1

Links

Table of n, a(n) for n=1..69.

Formula

{k | A008836(k) < 0 and A010873(k) > 0}.

Mathematica

Select[Range[200], And[LiouvilleLambda[#] < 0, ! Divisible[#, 4]] &] (* Michael De Vlieger, Dec 28 2022 *)

Prog

(PARI) isA359373(n) = A359372(n);

Crossrefs

Intersection of A026424 and A042968.

Setwise difference A042968 \ A359371.

Positions of negative terms in A358839.

Cf. A001222, A008836, A010873, A067019 (subsequence), A166486, A359372 (characteristic function).

Sequence in context: A171055 A117285 A100546 * A117094 A171057 A229786

Adjacent sequences: A359370 A359371 A359372 * A359374 A359375 A359376

Keyword

nonn

Author

Antti Karttunen, Dec 28 2022

Status

approved