A368672 - cp's OEIS frontend

A368672 Total number of lattice paths from (0,0) to (k,n-k) for k=0..n using steps (i,j) with i,j>=0 and gcd(i,j)=1.

n	a(n)
0	1
1	2
2	5
3	14
4	39
5	110
6	307
7	860
8	2407
9	6736
10	18851
11	52758
12	147651
13	413224
14	1156469
15	3236546
16	9057955
17	25350028
18	70945807
19	198552344
20	555678123
21	1555147480
22	4352310421
23	12180584958
24	34089170027
25	95403588336
26	267001063969
27	747242000068
28	2091267346883
29	5852721227868

[1, 2, 5, 14, 39, 110, 307, 860, 2407, 6736, 18851, 52758, 147651, 413224, 1156469, 3236546, 9057955, 25350028, 70945807, 198552344, 555678123, 1555147480, 4352310421, 12180584958, 34089170027, 95403588336, 267001063969, 747242000068, 2091267346883, 5852721227868]

cp's OEIS Frontend

A368672 Total number of lattice paths from (0,0) to (k,n-k) for k=0..n using steps (i,j) with i,j>=0 and gcd(i,j)=1.

Table of values

List of values