A327177 - OEIS

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A327177

a(n) = [(2n+1)r] - [(n+1)r] - [nr], where [ ] = floor and r = sqrt(2).

0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0`
	LINKS	`Clark Kimberling, Table of n, a(n) for n = 0..10000`
	FORMULA	`a(n) = [(2n+1)r] - [(n+1)r] - [nr], where [ ] = floor and r = sqrt(2).`
	MATHEMATICA	`r = Sqrt[2]; z = 200;` `t = Table[Floor[(2 n + 1)r] - Floor[nr + r] - Floor[n*r], {n, 0, z}]`
	CROSSREFS	`The positions of 0's and 1's in {a(n) : n > 0} are given by A327178 and A327179.` `Sequence in context: A288694 A292077 A327256 * A057212 A023959 A341334` `Adjacent sequences: A327174 A327175 A327176 * A327178 A327179 A327180`
	KEYWORD	`nonn,easy`
	AUTHOR	`Clark Kimberling, Aug 25 2019`
	STATUS	`approved`

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Last modified March 27 18:55 EDT 2023. Contains 361575 sequences. (Running on oeis4.)