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A329202 a(n) = floor(2*log_2(n)) = floor(log_2(n^2)). 6
0, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
PROG
(PARI) a(n)=logint(n^2, 2)
CROSSREFS
Cf. A017912, A328911 (has this as row lengths).
Sequence in context: A333262 A218767 A334863 * A318994 A261101 A327704
KEYWORD
nonn,easy
AUTHOR
M. F. Hasler, Nov 07 2019
STATUS
approved

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Last modified March 29 05:28 EDT 2024. Contains 371264 sequences. (Running on oeis4.)