login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A068726 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -1 .. 1. 17
1, 3, 35, 2053, 569397, 758541101, 4855339973053, 149596683621380451, 22207207625437795523567, 15894065026795563049567474623, 54873022990102933765115144179983347 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..11.

CROSSREFS

By size 3 X 3, ..., 6 X 6 A068722-A068725, by velocity limit 1..13 A068726-A068738.

Sequence in context: A320845 A012499 A125530 * A263512 A093583 A184458

Adjacent sequences:  A068723 A068724 A068725 * A068727 A068728 A068729

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 26 2002

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 22 18:03 EST 2020. Contains 332148 sequences. (Running on oeis4.)