The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A325675 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A325675

First term of n-th difference sequence of (floor(k*r)), r = -sqrt(8), k >= 0.
(history; published version)

#9 by Andrey Zabolotskiy at Sun Feb 20 08:19:00 EST 2022

STATUS

editing

approved

#8 by Andrey Zabolotskiy at Sun Feb 20 08:18:51 EST 2022

CROSSREFS

Cf. A002842, A022842, A325664, A325674.

STATUS

approved

editing

#7 by Sean A. Irvine at Sun May 19 21:21:36 EDT 2019

STATUS

proposed

approved

#6 by Clark Kimberling at Sun May 19 21:03:03 EDT 2019

STATUS

editing

proposed

#5 by Clark Kimberling at Sun May 19 21:01:48 EDT 2019

MATHEMATICA

Table[First[Differences[Table[Floor[-Sqrt[8]*n], {n, 0, z30}], n]], {n, 0, 50}]

STATUS

approved

editing

#4 by Susanna Cuyler at Wed May 15 20:34:30 EDT 2019

STATUS

proposed

approved

#3 by Clark Kimberling at Wed May 15 09:01:25 EDT 2019

STATUS

editing

proposed

#2 by Clark Kimberling at Wed May 15 08:59:36 EDT 2019

NAME

allocated for Clark KimberlingFirst term of n-th difference sequence of (floor(k*r)), r = -sqrt(8), k >= 0.

DATA

-3, 0, 0, 0, 0, 1, -6, 21, -56, 126, -252, 463, -804, 1365, -2366, 4368, -8736, 18565, -40410, 87381, -184604, 379050, -758100, 1486675, -2884776, 5592405, -10919090, 21572460, -43144920, 87087001, -176565486, 357913941, -723002336, 1453179126, -2906358251

OFFSET

1,1

LINKS

Clark Kimberling, <a href="/A325675/b325675.txt">Table of n, a(n) for n = 1..200</a>

MATHEMATICA

Table[First[Differences[Table[Floor[-Sqrt[8]*n], {n, 0, z}], n]], {n, 0, 50}]

CROSSREFS

Cf. A002842, A325674.

KEYWORD

allocated

easy,sign

AUTHOR

Clark Kimberling, May 15 2019

STATUS

approved

editing

#1 by Clark Kimberling at Sun May 12 15:27:57 EDT 2019

NAME

allocated for Clark Kimberling

KEYWORD

allocated

STATUS

approved