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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A052176 Triangle of numbers arising in enumeration of walks on square lattice. 1
1, 0, 2, 2, 0, 4, 0, 10, 0, 8, 10, 0, 34, 0, 16, 0, 70, 0, 98, 0, 32, 70, 0, 308, 0, 258, 0, 64, 0, 588, 0, 1092, 0, 642, 0, 128, 588, 0, 3024, 0, 3414, 0, 1538, 0, 256, 0, 5544, 0, 12276, 0, 9834, 0, 3586, 0, 512, 5544, 0, 31680, 0, 43230, 0, 26752, 0, 8194, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..64.

R. K. Guy, Catwalks, Sandsteps and Pascal Pyramids, J. Integer Seqs., Vol. 3 (2000), #00.1.6

EXAMPLE

1; 0,2; 2,0,4; 0,10,0,8; 10,0,34,0,16; 0,70,0,98,0,32; ...

CROSSREFS

Essentially same as A052175.

Sequence in context: A131381 A295215 A112080 * A138092 A138090 A138093

Adjacent sequences:  A052173 A052174 A052175 * A052177 A052178 A052179

KEYWORD

nonn,tabl,easy,nice

AUTHOR

N. J. A. Sloane, Jan 26 2000

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 February 18 00:19 EST 2019. Contains 320237 sequences. (Running on oeis4.)