A277756 - cp's OEIS frontend

A277756 Total number of nodes summed over all self-avoiding planar walks starting at (0,0), ending at (n,n), remaining in the first quadrant and using steps (0,1) and (1,0) on or below the diagonal and using steps (1,1), (-1,1), and (1,-1) on or above the diagonal.

n	a(n)
0	1
1	5
2	32
3	224
4	1723
5	14569
6	135286
7	1375882
8	15263414
9	183817326
10	2391291386
11	33443618930
12	500611975023
13	7988044467121
14	135376576319870
15	2428721569276698
16	45988428905194350
17	916607431346170686
18	19182997480530342168
19	420606731490047403144

[1, 5, 32, 224, 1723, 14569, 135286, 1375882, 15263414, 183817326, 2391291386, 33443618930, 500611975023, 7988044467121, 135376576319870, 2428721569276698, 45988428905194350, 916607431346170686, 19182997480530342168, 420606731490047403144]

cp's OEIS Frontend

A277756 Total number of nodes summed over all self-avoiding planar walks starting at (0,0), ending at (n,n), remaining in the first quadrant and using steps (0,1) and (1,0) on or below the diagonal and using steps (1,1), (-1,1), and (1,-1) on or above the diagonal.

Table of values

List of values