The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A285353 Positions of 0 in A285351; complement of A285354. 3
 1, 3, 7, 9, 13, 16, 19, 21, 25, 27, 31, 34, 37, 39, 43, 46, 48, 52, 55, 57, 61, 63, 67, 70, 73, 75, 79, 81, 85, 88, 91, 93, 97, 100, 102, 106, 109, 111, 115, 117, 121, 124, 127, 129, 133, 136, 138, 142, 144, 148, 151, 154, 156, 160, 163, 165, 169, 171, 175 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Conjecture: 3n - 2 - a(n) is in {0,1} for n>=1. LINKS Clark Kimberling, Table of n, a(n) for n = 1..10000 MATHEMATICA s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {1, 1, 0, 0}}] &, {0}, 13] (* A285345 *) u = Flatten[Position[s, 0]]  (* A285346 *) v = Flatten[Position[s, 1]]  (* A285347 *) t1 = Table[2*n + 1 - u[[n]], {n, 1, Length[u]}] (* A285351 *) t2 = Table[2*n - 1 - v[[n]], {n, 1, Length[v]}] (* A285352 *) Flatten[Position[t1, 0]]  (* A285353 *) Flatten[Position[t1, 1]]  (* A285354 *) Flatten[Position[t2, 0]]  (* A189668 *) Flatten[Position[t2, 1]]  (* A189679 *) CROSSREFS Cf. A285345, A285346, A285351, A285354. Sequence in context: A057701 A140291 A032367 * A063204 A236208 A284884 Adjacent sequences:  A285350 A285351 A285352 * A285354 A285355 A285356 KEYWORD nonn,easy AUTHOR Clark Kimberling, Apr 25 2017 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 25 10:09 EDT 2021. Contains 345453 sequences. (Running on oeis4.)