login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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
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 (list; table; graph; refs; listen; history; text; internal format)
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: A101856 A326291 A269250 * A035678 A094518 A123074

Adjacent sequences:  A059481 A059482 A059483 * A059485 A059486 A059487

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane, Feb 04 2001

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 18 07:22 EST 2019. Contains 329252 sequences. (Running on oeis4.)