A308114 - cp's OEIS frontend

A308114 Total number of nodes summed over all lattice paths from (0,0) to (n,n) that do not go above the diagonal x=y and consist of steps (h,v) with min(h,v) > 0 and gcd(h,v) = 1.

n	a(n)
0	1
1	2
2	3
3	7
4	26
5	92
6	314
7	1055
8	3589
9	12410
10	43356
11	152336
12	537721
13	1906063
14	6781737
15	24206994
16	86644157
17	310871212
18	1117741815
19	4026430097
20	14528792287
21	52504325068
22	189999731589
23	688411569408
24	2497081766875
25	9067028323162
26	32953990726244
27	119875216666167

[1, 2, 3, 7, 26, 92, 314, 1055, 3589, 12410, 43356, 152336, 537721, 1906063, 6781737, 24206994, 86644157, 310871212, 1117741815, 4026430097, 14528792287, 52504325068, 189999731589, 688411569408, 2497081766875, 9067028323162, 32953990726244, 119875216666167]

cp's OEIS Frontend

A308114 Total number of nodes summed over all lattice paths from (0,0) to (n,n) that do not go above the diagonal x=y and consist of steps (h,v) with min(h,v) > 0 and gcd(h,v) = 1.

Table of values

List of values