A340378 - OEIS

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A340378

Number of 1-digits in the ternary representation of A048673(n).

5

1, 0, 1, 1, 2, 0, 0, 2, 3, 1, 1, 1, 1, 1, 0, 3, 2, 2, 2, 2, 2, 0, 1, 2, 1, 0, 1, 2, 2, 1, 1, 4, 1, 1, 3, 3, 1, 1, 3, 3, 2, 1, 0, 1, 2, 2, 1, 3, 1, 0, 2, 1, 2, 0, 2, 3, 2, 1, 3, 2, 2, 0, 2, 5, 0, 2, 2, 2, 1, 2, 3, 4, 4, 0, 3, 2, 0, 2, 2, 4, 3, 1, 1, 2, 3, 1, 0, 2, 3, 1, 4, 3, 3, 0, 1, 4, 1, 0, 1, 1, 2, 1, 0, 2, 3

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OFFSET

1,5

COMMENTS

Binary weight of A304759(n).

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..16384

Index entries for sequences computed from indices in prime factorization

FORMULA

a(n) = A062756(A048673(n)) = A000120(A304759(n)).

a(n) = A286585(n) - 2*A340379(n).

PROG

(PARI) A340378(n) = hammingweight(A304759(n));

CROSSREFS

Cf. A000120, A048673, A062756, A286585, A304759, A340379.

Cf. A340376 (positions of zeros).

Sequence in context: A352551 A174739 A280542 * A274575 A203994 A285725

Adjacent sequences: A340375 A340376 A340377 * A340379 A340380 A340381

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jan 15 2021

STATUS

approved