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Revision History for A210564

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A210564 Triangle of coefficients of polynomials v(n,x) jointly generated with A210563; see the Formula section.
(history; published version)
#5 by Russ Cox at Fri Mar 30 18:58:17 EDT 2012
AUTHOR

_Clark Kimberling (ck6(AT)evansville.edu), _, Mar 23 2012

Discussion
Fri Mar 30 18:58
OEIS Server: https://oeis.org/edit/global/285
#4 by N. J. A. Sloane at Sat Mar 24 18:18:42 EDT 2012
STATUS

proposed

approved

#3 by Clark Kimberling at Sat Mar 24 18:16:19 EDT 2012
STATUS

editing

proposed

#2 by Clark Kimberling at Fri Mar 23 11:11:33 EDT 2012
NAME

allocatedTriangle of coefficients of polynomials v(n,x) jointly generated with A210563; see forthe ClarkFormula Kimberlingsection.

DATA

1, 2, 3, 2, 7, 8, 2, 8, 22, 21, 2, 8, 29, 67, 55, 2, 8, 30, 101, 200, 144, 2, 8, 30, 111, 341, 588, 377, 2, 8, 30, 112, 404, 1122, 1708, 987, 2, 8, 30, 112, 417, 1442, 3613, 4913, 2584, 2, 8, 30, 112, 418, 1543, 5044, 11425, 14018, 6765, 2, 8, 30, 112, 418

OFFSET

1,2

COMMENTS

Last terms in rows: even-indexed Fibonacci numbers

Limiting row: A052530

For a discussion and guide to related arrays, see A208510.

FORMULA

u(n,x)=x*u(n-1,x)+x*v(n-1,x)+1,

v(n,x)=(x+1)*u(n-1,x)+2x*v(n-1,x)+1,

where u(1,x)=1, v(1,x)=1.

EXAMPLE

First five rows:

1

2...3

2...7...8

2...8...22...21

2...8...29...67...55

First three polynomials v(n,x): 1, 2 + 3x , 2 + 8x + 22x^2.

MATHEMATICA

u[1, x_] := 1; v[1, x_] := 1; z = 16;

u[n_, x_] := x*u[n - 1, x] + x*v[n - 1, x] + 1;

v[n_, x_] := (x + 1)*u[n - 1, x] + 2 x*v[n - 1, x] + 1;

Table[Expand[u[n, x]], {n, 1, z/2}]

Table[Expand[v[n, x]], {n, 1, z/2}]

cu = Table[CoefficientList[u[n, x], x], {n, 1, z}];

TableForm[cu]

Flatten[%] (* A210563 *)

Table[Expand[v[n, x]], {n, 1, z}]

cv = Table[CoefficientList[v[n, x], x], {n, 1, z}];

TableForm[cv]

Flatten[%] (* A210564 *)

CROSSREFS

Cf. A210563, A208510.

KEYWORD

allocated

nonn,tabl

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu), Mar 23 2012

STATUS

approved

editing

#1 by Clark Kimberling at Thu Mar 22 09:53:03 EDT 2012
NAME

allocated for Clark Kimberling

KEYWORD

allocated

STATUS

approved

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Last modified September 8 15:19 EDT 2024. Contains 375753 sequences. (Running on oeis4.)