A126086 - cp's OEIS frontend

A126086 Number of paths from (0,0,0) to (n,n,n) such that at each step (i) at least one coordinate increases, (ii) no coordinate decreases, (iii) no coordinate increases by more than 1 and (iv) all coordinates are integers.

n	a(n)
0	1
1	13
2	409
3	16081
4	699121
5	32193253
6	1538743249
7	75494983297
8	3776339263873
9	191731486403293
10	9850349744182729
11	510958871182549297
12	26716694098174738321
13	1406361374518034383189
14	74456543501901550262689
15	3961518532003397434536961
16	211689479080817606497324033

[1, 13, 409, 16081, 699121, 32193253, 1538743249, 75494983297, 3776339263873, 191731486403293, 9850349744182729, 510958871182549297, 26716694098174738321, 1406361374518034383189, 74456543501901550262689, 3961518532003397434536961, 211689479080817606497324033]

cp's OEIS Frontend

A126086 Number of paths from (0,0,0) to (n,n,n) such that at each step (i) at least one coordinate increases, (ii) no coordinate decreases, (iii) no coordinate increases by more than 1 and (iv) all coordinates are integers.

Table of values

List of values