A059484 - OEIS

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A059484

Triangle T(n,k) = coefficient of x^n*y^k in 1/(1-x*y-x*y^2-x^2*y^3), read by rows in order 00, 10, 01, 20, 11, 02, ...

1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 1, 5, 0, 0, 0, 0, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 25, 1, 0, 0, 0, 0, 0, 0

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OFFSET

0,19

LINKS

Table of n, a(n) for n=0..92.

R. C. Read, Contributions to the cell growth problem, Canad. J. Math., 14 (1962), 1-20.

MAPLE

read transforms; 1/(1-x*y-x*y^2-x^2*y^3); SERIES2(%, x, y, 12): SERIES2TOLIST(%, x, y, 12);

CROSSREFS

Row sums: A079973.

Sequence in context: A326291 A269250 A334740 * A360016 A035678 A094518

Adjacent sequences: A059481 A059482 A059483 * A059485 A059486 A059487

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane, Feb 04 2001

STATUS

approved