A358776 Positive integers with an even number of prime factors (counting repetitions) that sum to an odd number.

6, 10, 14, 22, 24, 26, 34, 38, 40, 46, 54, 56, 58, 62, 74, 82, 86, 88, 90, 94, 96, 104, 106, 118, 122, 126, 134, 136, 142, 146, 150, 152, 158, 160, 166, 178, 184, 194, 198, 202, 206, 210, 214, 216, 218, 224, 226, 232, 234, 248, 250, 254, 262, 274, 278, 294, 296, 298, 302, 306, 314, 326, 328, 330, 334

Offset

1,1

Comments

All terms are even because they must have an odd 2-adic valuation.

Links

Table of n, a(n) for n=1..65.

Prog

(PARI) isA358776(n) = A358775(n);

Crossrefs

Setwise difference A028260 \ A345452.

Intersection of any two of A028260, A036554, A335657.

Cf. A358775 (characteristic function).

Not 2*A249370 (for example, 105 is missing from the latter).

Sequence in context: A315230 A315231 A015812 * A315232 A175168 A315233

Adjacent sequences: A358773 A358774 A358775 * A358777 A358778 A358779

Keyword

nonn

Author

Antti Karttunen, Dec 01 2022

Status

approved