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A287802 Positions of 0 in A287801; complement of A287803. 3
2, 3, 4, 5, 8, 9, 11, 12, 13, 14, 17, 18, 19, 20, 23, 24, 26, 27, 28, 29, 32, 33, 35, 36, 37, 38, 41, 42, 43, 44, 47, 48, 50, 51, 52, 53, 56, 57, 58, 59, 62, 63, 65, 66, 67, 68, 71, 72, 74, 75, 76, 77, 80, 81, 82, 83, 86, 87, 89, 90, 91, 92, 95, 96, 98, 99 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Let d(n) = 3n/2 - a(n).  Then d(n) is in {-1/2, 0, 1/2, 1} for n >= 1.  Indeed,

d(n) = - 1/2 if n is in A075317; d(n) = 1/2 if n is in A075318;

d(n) = 0 if n is in A283234; d(n) = 1 if n is in A283233.

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..10000

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0}}] &, {0}, 10] (* A003849 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"0" -> "100", "1" -> "001"}]

st = ToCharacterCode[w1] - 48    (* A287801 *)

Flatten[Position[st, 0]]  (* A287802 *)

Flatten[Position[st, 1]]  (* A287803 *)

CROSSREFS

Cf. A075317, A075318, A283233, A283234, A287801, A287803.

Sequence in context: A116214 A161389 A266118 * A214207 A302497 A044051

Adjacent sequences:  A287799 A287800 A287801 * A287803 A287804 A287805

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 03 2017

STATUS

approved

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Last modified September 19 13:31 EDT 2021. Contains 347563 sequences. (Running on oeis4.)