A068747 Number of potential flows in 6 X 6 array with integer velocities in -n..n, i.e., number of 6 X 6 arrays with adjacent elements differing by no more than n, counting arrays differing by a constant only once.

1, 12961320464027, 379827509377146575439, 40918963843906494595507077

Offset

0,2

Links

Table of n, a(n) for n=0..3.

Crossrefs

Cf. 2 X 2 A063496, 3 X 3 A068744, 4 X 4 A068745, 5 X 5 A068746, by velocity limit 1..14 A068748-A068761, solenoidal flows A068722-A068738.

Sequence in context: A172615 A172719 A226954 * A238357 A349028 A160935

Adjacent sequences: A068744 A068745 A068746 * A068748 A068749 A068750

Keyword

nonn

Author

R. H. Hardin, Feb 27 2002

Status

approved