The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A208900 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A208900

Number of bitstrings of length n which (if having two or more runs) the last two runs have different lengths.
(history; published version)

#26 by Michael De Vlieger at Wed Jun 07 08:31:14 EDT 2023

STATUS

reviewed

approved

#25 by Michel Marcus at Wed Jun 07 01:38:30 EDT 2023

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proposed

reviewed

#24 by Stefano Spezia at Tue Jun 06 16:10:30 EDT 2023

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editing

proposed

#23 by Stefano Spezia at Tue Jun 06 15:58:14 EDT 2023

FORMULA

E.g.f.: - 2*cosh(sqrt(2)*x) + 2*exp(x)*(1 + sinh(x)) - sqrt(2)*sinh(sqrt(2)*x). - Stefano Spezia, Jun 06 2023

STATUS

approved

editing

#22 by N. J. A. Sloane at Mon Jul 09 23:20:58 EDT 2018

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reviewed

approved

#21 by Joerg Arndt at Sat Jul 07 04:00:04 EDT 2018

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proposed

reviewed

#20 by Michel Marcus at Sat Jul 07 03:57:12 EDT 2018

STATUS

editing

proposed

#19 by Michel Marcus at Sat Jul 07 03:57:09 EDT 2018

REFERENCES

A. Gabhe, Problems and Solutions: 11623, The Amer. Math. Monthly 119 (2012), no. 2, 161.

LINKS

Aruna Gabhe, <a href="https://www.jstor.org/stable/10.4169/amer.math.monthly.119.02.161">Problem 11623</a>, Am. Math. Monthly 119 (2012) 161.

#18 by Michel Marcus at Sat Jul 07 03:56:52 EDT 2018

LINKS

<a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (3,0,-6,4).

STATUS

approved

editing

#17 by Charles R Greathouse IV at Sat Jun 13 00:54:11 EDT 2015

LINKS

<a href="/index/Rec">Index to sequences with entries for linear recurrences with constant coefficients</a>, signature (3,0,-6,4).

Discussion

Sat Jun 13

00:54

OEIS Server: https://oeis.org/edit/global/2439