The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A209294

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A209294

a(n) = (7*n^2 - 7*n + 4)/2.
(history; published version)

#38 by Charles R Greathouse IV at Thu Sep 08 08:46:01 EDT 2022

PROG

(MAGMAMagma) [(7*n^2 - 7*n + 4)/2: n in [1..30]]; // G. C. Greubel, Jan 04 2018

Discussion

Thu Sep 08

08:46

OEIS Server: https://oeis.org/edit/global/2944

#37 by Harvey P. Dale at Mon Nov 02 11:28:32 EST 2020

STATUS

editing

approved

#36 by Harvey P. Dale at Mon Nov 02 11:28:28 EST 2020

MATHEMATICA

LinearRecurrence[{3, -3, 1}, {2, 9, 23}, 40] (* Harvey P. Dale, Nov 02 2020 *)

STATUS

approved

editing

#35 by OEIS Server at Fri Jan 05 02:55:26 EST 2018

LINKS

G. C. Greubel, <a href="/A209294/b209294_7.txt">Table of n, a(n) for n = 1..5000</a>

#34 by Bruno Berselli at Fri Jan 05 02:55:26 EST 2018

STATUS

reviewed

approved

Discussion

Fri Jan 05

02:55

OEIS Server: Installed new b-file as b209294.txt.  Old b-file is now b209294_7.txt.

#33 by Joerg Arndt at Fri Jan 05 02:55:00 EST 2018

STATUS

proposed

reviewed

#32 by Michel Marcus at Fri Jan 05 01:28:54 EST 2018

STATUS

editing

proposed

#31 by Michel Marcus at Fri Jan 05 01:28:50 EST 2018

FORMULA

E.g.f.: ((7*x^2 + 4)*exp(x) - 4)/2. - G. C. Greubel, Jan 04 2018 *)

STATUS

proposed

editing

#30 by G. C. Greubel at Fri Jan 05 01:21:48 EST 2018

STATUS

editing

proposed

#29 by G. C. Greubel at Fri Jan 05 01:21:40 EST 2018

NAME

a(n) = (7/2*n^2 - 7/2*n + 4)/2.

LINKS

G. C. Greubel, <a href="/A209294/b209294_7.txt">Table of n, a(n) for n = 1..5000</a>

FORMULA

a(n) = (7/2*n^2 - 7/2*n + 2 4) = 7*T(n) + 2 with T = A000217.

E.g.f.: ((7*x^2 + 4)*exp(x) - 4)/2. - G. C. Greubel, Jan 04 2018 *)

MATHEMATICA

Table[(7*n^2 - 7*n + 4)/2, {n, 1, 50}] (* G. C. Greubel, Jan 04 2018 *)

PROG

(MAGMA) [(7*n^2 - 7*n + 4)/2: n in [1..30]]; // G. C. Greubel, Jan 04 2018

STATUS

approved

editing