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A293328 Least integer k such that k/2^n > sqrt(1/3). 3
1, 2, 3, 5, 10, 19, 37, 74, 148, 296, 592, 1183, 2365, 4730, 9460, 18919, 37838, 75675, 151349, 302698, 605396, 1210792, 2421583, 4843166, 9686331, 19372661, 38745321, 77490642, 154981283, 309962566, 619925132, 1239850263, 2479700525, 4959401050, 9918802099 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Clark Kimberling, Table of n, a(n) for n = 0..1000

FORMULA

a(n) = ceiling(r*2^n), where r = sqrt(1/3).

a(n) = A293327(n) + 1.

MATHEMATICA

z = 120; r = Sqrt[1/3];

Table[Floor[r*2^n], {n, 0, z}];   (* A293327 *)

Table[Ceiling[r*2^n], {n, 0, z}]; (* A293328 *)

Table[Round[r*2^n], {n, 0, z}];   (* A293329 *)

CROSSREFS

Cf. A002194, A094386, A293327, A293329.

Sequence in context: A046630 A177874 A293353 * A064236 A245001 A007569

Adjacent sequences:  A293325 A293326 A293327 * A293329 A293330 A293331

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Oct 10 2017

STATUS

approved

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Last modified December 10 01:59 EST 2018. Contains 318035 sequences. (Running on oeis4.)