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A215061 Triangle read by rows, e.g.f. exp(x*(z-1/2))*((exp(3*x/2)+2*cos(sqrt(3)*x/2))/3). 5
1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 4, 0, 0, 1, 0, 0, 10, 0, 0, 1, 1, 0, 0, 20, 0, 0, 1, 0, 7, 0, 0, 35, 0, 0, 1, 0, 0, 28, 0, 0, 56, 0, 0, 1, 1, 0, 0, 84, 0, 0, 84, 0, 0, 1, 0, 10, 0, 0, 210, 0, 0, 120, 0, 0, 1, 0, 0, 55, 0, 0, 462, 0, 0, 165, 0, 0, 1, 1, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,12

COMMENTS

Matrix inverse is A215060.

LINKS

Table of n, a(n) for n=0..80.

EXAMPLE

[0] [1]

[1] [0, 1]

[2] [0, 0, 1]

[3] [1, 0, 0, 1]

[4] [0, 4, 0, 0, 1]

[5] [0, 0, 10, 0, 0, 1]

[6] [1, 0, 0, 20, 0, 0, 1]

[7] [0, 7, 0, 0, 35, 0, 0, 1]

[8] [0, 0, 28, 0, 0, 56, 0, 0, 1]

[9] [1, 0, 0, 84, 0, 0, 84, 0, 0, 1]

PROG

(Sage)

def A215061_triangle(dim): # See A215060 for function 'triangle'.

    var('x, z')

    f = exp(x*(z-1/2))*((exp(3*x/2)+2*cos(sqrt(3)*x/2))/3)

    return triangle(f, dim)

A215061_triangle(12)

CROSSREFS

Cf. A215060, A215062, A215063, A215064, A215065.

Sequence in context: A156393 A335510 A331438 * A215060 A096623 A171914

Adjacent sequences:  A215058 A215059 A215060 * A215062 A215063 A215064

KEYWORD

nonn,tabl

AUTHOR

Peter Luschny, Aug 01 2012

STATUS

approved

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Last modified May 12 17:19 EDT 2021. Contains 343829 sequences. (Running on oeis4.)