A068748 - cp's OEIS frontend

A068748 Number of potential flows in n X n array with integer velocities in -1..1, i.e., number of n X n arrays with adjacent elements differing by no more than 1, counting arrays differing by a constant only once.

n	a(n)
1	1
2	19
3	1665
4	690437
5	1366395515
6	12961320464027
7	590771311004409091
8	129585582154154757804255
9	136932044780329080616264070553
10	697547669137459516115242710064880165

[1, 19, 1665, 690437, 1366395515, 12961320464027, 590771311004409091, 129585582154154757804255, 136932044780329080616264070553, 697547669137459516115242710064880165]

cp's OEIS Frontend

A068748 Number of potential flows in n X n array with integer velocities in -1..1, i.e., number of n X n arrays with adjacent elements differing by no more than 1, counting arrays differing by a constant only once.

Table of values

List of values