The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A325674 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A325674

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 08:18:26 EST 2022

STATUS

editing

approved

#8 by Andrey Zabolotskiy at Sun Feb 20 08:18:19 EST 2022

CROSSREFS

Cf. A002842, A022842, A325664, A325675.

STATUS

approved

editing

#7 by Sean A. Irvine at Sun May 19 21:22:20 EDT 2019

STATUS

proposed

approved

#6 by Clark Kimberling at Sun May 19 21:02:56 EDT 2019

STATUS

editing

proposed

#5 by Clark Kimberling at Sun May 19 21:01:26 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 20:34:24 EDT 2019

STATUS

proposed

approved

#3 by Clark Kimberling at Wed May 15 09:01:20 EDT 2019

STATUS

editing

proposed

#2 by Clark Kimberling at Wed May 15 08:58:12 EDT 2019

NAME

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

DATA

2, 1, -1, 1, -1, 0, 5, -20, 55, -125, 251, -462, 803, -1364, 2365, -4367, 8735, -18564, 40409, -87380, 184603, -379049, 758099, -1486674, 2884775, -5592404, 10919089, -21572459, 43144919, -87087000, 176565485, -357913940, 723002335, -1453179125, 2906358250

OFFSET

1,1

LINKS

Clark Kimberling, <a href="/A325674/b325674.txt">Table of n, a(n) for n = 1..199</a>

MATHEMATICA

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

CROSSREFS

Cf. A002842, A325675.

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