A378026 - cp's OEIS frontend

A378026 Number of simple lattice paths, steps (-1,0,0),(0,-1,0),(0,0,-1), of length 3n from (n,n,n) to the origin, never returning to the diagonal x = y = z before the origin.

n	a(n)
0	1
1	6
2	54
3	816
4	14814
5	295812
6	6262488
7	137929392
8	3125822238
9	72383434332
10	1704669773652
11	40693683620448
12	982302086191752
13	23933136140685648
14	587728374471479952
15	14530886841268923264
16	361374588105759096606
17	9033515437023805672044
18	226844689948433272890396
19	5719461854507320708714464

[1, 6, 54, 816, 14814, 295812, 6262488, 137929392, 3125822238, 72383434332, 1704669773652, 40693683620448, 982302086191752, 23933136140685648, 587728374471479952, 14530886841268923264, 361374588105759096606, 9033515437023805672044, 226844689948433272890396, 5719461854507320708714464]

cp's OEIS Frontend

A378026 Number of simple lattice paths, steps (-1,0,0),(0,-1,0),(0,0,-1), of length 3n from (n,n,n) to the origin, never returning to the diagonal x = y = z before the origin.

Table of values

List of values