A068744 - cp's OEIS frontend

A068744 Number of potential flows in 3 X 3 array with integer velocities in -n..n, i.e., number of 3 X 3 arrays with adjacent elements differing by no more than n, counting arrays differing by a constant only once.

n	a(n)
0	1
1	1665
2	87825
3	1253329
4	9230193
5	45642289
6	172989921
7	542131425
8	1473095713
9	3582226465
10	7970825457
11	16492629297
12	32119620625
13	59427841617
14	105227044417
15	179360179905
16	295700892993
17	473379359425
18	738268965841

[1, 1665, 87825, 1253329, 9230193, 45642289, 172989921, 542131425, 1473095713, 3582226465, 7970825457, 16492629297, 32119620625, 59427841617, 105227044417, 179360179905, 295700892993, 473379359425, 738268965841]

cp's OEIS Frontend

A068744 Number of potential flows in 3 X 3 array with integer velocities in -n..n, i.e., number of 3 X 3 arrays with adjacent elements differing by no more than n, counting arrays differing by a constant only once.

Table of values

List of values