The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A061084 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A061084

Fibonacci-type sequence based on subtraction: a(0) = 1, a(1) = 2 and a(n) = a(n-2)-a(n-1).
(history; published version)

#46 by Susanna Cuyler at Fri Mar 06 22:38:22 EST 2020

STATUS

proposed

approved

#45 by Michael De Vlieger at Fri Mar 06 21:04:54 EST 2020

STATUS

editing

proposed

#44 by Michael De Vlieger at Fri Mar 06 21:04:53 EST 2020

LINKS

Kai Wang, <a href="https://www.researchgate.net/publication/337943524_Fibonacci_Numbers_And_Trigonometric_Functions_Outline">Fibonacci Numbers And Trigonometric Functions Outline</a>, (2019).

STATUS

approved

editing

#43 by R. J. Mathar at Sat Jun 09 12:43:37 EDT 2018

STATUS

editing

approved

#42 by R. J. Mathar at Sat Jun 09 12:43:31 EDT 2018

LINKS

Q. Wang, <a href="https://www.semanticscholar.org/paper/On-generalized-Lucas-sequences-Wang-Akbari/7e33b3b79703dc6790fca133e8c92cc0cafcfe4a">On generalized Lucas sequences</a>, Contemp. Math. 531 (2010) 127-141, Table 2 (k=2).

STATUS

approved

editing

#41 by Joerg Arndt at Sun Jun 18 09:44:58 EDT 2017

STATUS

reviewed

approved

#40 by Michel Marcus at Sun Jun 18 08:11:12 EDT 2017

STATUS

proposed

reviewed

#39 by Jon E. Schoenfield at Sun Jun 18 07:17:19 EDT 2017

STATUS

editing

proposed

#38 by Jon E. Schoenfield at Sun Jun 18 07:17:15 EDT 2017

COMMENTS

Pisano period lengths: 1, 3, 8, 6, 4, 24, 16, 12, 24, 12, 10, 24, 28, 48, 8, 24, 36, 24, 18, 12, .... (is this A106291?). - R. J. Mathar, Aug 10 2012

FORMULA

a(n) = (-1)^(n-1) * A000204(n-1).

STATUS

approved

editing

#37 by Charles R Greathouse IV at Thu Feb 09 03:14:54 EST 2017

STATUS

editing

approved