A248124 - cp's OEIS frontend

A248124 Least integer m > 0 such that gcd(m,n) = 1 and (m+n) | (C(m)+C(n)), where C(k) refers to the k-th Catalan number, binomial(2k,k)/(k+1).

n	a(n)
4	1
5	19
6	1
7	20
8	1
9	95
10	1
11	4
12	1
13	242
14	241
15	478
16	1
17	23
18	1
19	5
20	7
21	109
22	1
23	17
24	1
25	227
26	467
27	37
28	1
29	209
30	1
31	330
32	2077
33	17
34	1073
35	816
36	1
37	27
38	109
39	71
40	1
41	43
42	1
43	41
44	145
45	151
46	1
47	43
48	1
49	59
50	71
51	587
52	1
53	87
54	1775
55	344
56	1773
57	1127
58	1
59	49
60	1

[1, 19, 1, 20, 1, 95, 1, 4, 1, 242, 241, 478, 1, 23, 1, 5, 7, 109, 1, 17, 1, 227, 467, 37, 1, 209, 1, 330, 2077, 17, 1073, 816, 1, 27, 109, 71, 1, 43, 1, 41, 145, 151, 1, 43, 1, 59, 71, 587, 1, 87, 1775, 344, 1773, 1127, 1, 49, 1]

cp's OEIS Frontend

A248124 Least integer m > 0 such that gcd(m,n) = 1 and (m+n) | (C(m)+C(n)), where C(k) refers to the k-th Catalan number, binomial(2k,k)/(k+1).

Table of values

List of values