The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A027006 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A027006

a(n) = T(2*n+1, n+3), T given by A026998.
(history; published version)

#10 by Wesley Ivan Hurt at Thu May 11 14:21:42 EDT 2023

STATUS

editing

approved

#9 by Wesley Ivan Hurt at Thu May 11 14:21:26 EDT 2023

CROSSREFS

Cf. A026998, A053298.

STATUS

approved

editing

#8 by Bruno Berselli at Fri Feb 19 08:20:28 EST 2016

STATUS

proposed

approved

#7 by Colin Barker at Fri Feb 19 08:16:18 EST 2016

STATUS

editing

proposed

#6 by Colin Barker at Fri Feb 19 08:15:48 EST 2016

NAME

a(n) = T(2n2*n+1, n+3), T given by A026998.

DATA

1, 34, 281, 1397, 5353, 17643, 53062, 150833, 414210, 1114160, 2960806, 7814074, 20544191, 53902532, 141273663, 370060623, 969088727, 2537431693, 6643486220, 17393369595, 45537037936, 119218243314, 312118286876, 817137321092, 2139294503373, 5600747154678

COMMENTS

Bisection of A053298.

LINKS

Colin Barker, <a href="/A027006/b027006.txt">Table of n, a(n) for n = 2..1000</a>

<a href="/index/Rec#order_07">Index entries for linear recurrences with constant coefficients</a>, signature (8,-26,45,-45,26,-8,1).

FORMULA

G.f.: x^2*(1+26*x+35*x^2-12*x^3-2*x^4) / ((1-x)^5*(1-3*x+x^2)). - Colin Barker, Feb 19 2016

PROG

(PARI) Vec(x^2*(1+26*x+35*x^2-12*x^3-2*x^4) / ((1-x)^5*(1-3*x+x^2)) + O(x^40)) \\ Colin Barker, Feb 19 2016

CROSSREFS

Bisection of A053298.

Cf. A053298.

KEYWORD

nonn,easy

STATUS

approved

editing

#5 by Russ Cox at Fri Mar 30 18:56:13 EDT 2012

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

Clark Kimberling

Discussion

Fri Mar 30

18:56

OEIS Server: https://oeis.org/edit/global/285

#4 by N. J. A. Sloane at Thu Feb 19 03:00:00 EST 2004

CROSSREFS

Bisection of A053298.

KEYWORD

nonn,new

nonn

#3 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003

KEYWORD

nonn,new

nonn

AUTHOR

Clark Kimberling, (ck6(AT)evansville.edu)

#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

KEYWORD

nonn,new

nonn

AUTHOR

Clark Kimberling, ck6@cedar.(AT)evansville.edu

#1 by N. J. A. Sloane at Sat Dec 11 03:00:00 EST 1999

NAME

T(2n+1,n+3), T given by A026998.

DATA

1, 34, 281, 1397, 5353, 17643, 53062, 150833, 414210, 1114160, 2960806, 7814074, 20544191, 53902532, 141273663, 370060623, 969088727, 2537431693, 6643486220, 17393369595

OFFSET

2,2

KEYWORD

nonn

AUTHOR

Clark Kimberling, ck6@cedar.evansville.edu

STATUS

approved