A329199 a(n) = round(log_3(n)).

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

Offset

1,6

Links

Table of n, a(n) for n=1..99.

Mathematica

Round[Log[3, Range[100]]] (* Harvey P. Dale, Sep 06 2022 *)

Prog

(PARI) apply( A329199(n)=log(n)\/log(3), [1..130])

Crossrefs

Cf. A062153 (floor log_3), A000523 (floor log_2), A004257 (round log_2), A029837 (ceiling log_2), A329194 (log_3(n^2)).

Sequence in context: A108622 A112348 A348460 * A064601 A262303 A127321

Adjacent sequences: A329196 A329197 A329198 * A329200 A329201 A329202

Keyword

nonn

Author

M. F. Hasler, Nov 07 2019

Status

approved