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A115322 Triangle of coefficients of Pell polynomials. 0
1, 0, 2, 1, 0, 4, 0, 4, 0, 8, 1, 0, 12, 0, 16, 0, 6, 0, 32, 0, 32, 1, 0, 24, 0, 80, 0, 64, 0, 8, 0, 80, 0, 192, 0, 128, 1, 0, 40, 0, 240, 0, 448, 0, 256, 0, 10, 0, 160, 0, 672, 0, 1024, 0, 512, 1, 0, 60, 0, 560, 0, 1792, 0, 2304, 0, 1024, 0, 12, 0, 280, 0, 1792, 0, 4608, 0, 5120, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Aside from signs, same as A053117.

LINKS

Table of n, a(n) for n=1..77.

Eric Weisstein's World of Mathematics, Pell Polynomial

FORMULA

G.f. for n-th row is Fibonacci(n, 2*x).

EXAMPLE

1, 2*x, 1 + 4*x^2, 4*x + 8*x^3, 1 + 12*x^2 + 16*x^4, ...

MATHEMATICA

Flatten[Table[CoefficientList[Fibonacci[n, 2 x], x], {n, 0, 20}]] (* Emanuele Munarini, Dec 01 2017 *)

CROSSREFS

Cf. A053117.

Sequence in context: A317552 A214809 A137336 * A053117 A121448 A019094

Adjacent sequences:  A115319 A115320 A115321 * A115323 A115324 A115325

KEYWORD

nonn,tabl

AUTHOR

Eric W. Weisstein, Jan 20 2006

STATUS

approved

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Last modified April 1 05:04 EDT 2020. Contains 333155 sequences. (Running on oeis4.)