A177463 - cp's OEIS frontend

A177463 The smallest k such that Catalan(n)+k and Catalan(n)-k are both prime.

n	a(n)
3	0
4	3
5	1
6	5
7	10
8	3
9	69
10	33
11	45
12	45
13	9
14	47
15	86
16	97
17	97
18	41
19	19
20	49
21	191
22	11
23	101
24	283
25	1
26	69
27	597
28	549
29	1341
30	243
31	552
32	121
33	157
34	115
35	1341
36	1905
37	165
38	597
39	27
40	87
41	31
42	731
43	1093
44	449
45	127
46	37
47	37
48	157
49	1145
50	587
51	317
52	659
53	1523
54	487
55	865
56	4879
57	463
58	1351
59	4471

[0, 3, 1, 5, 10, 3, 69, 33, 45, 45, 9, 47, 86, 97, 97, 41, 19, 49, 191, 11, 101, 283, 1, 69, 597, 549, 1341, 243, 552, 121, 157, 115, 1341, 1905, 165, 597, 27, 87, 31, 731, 1093, 449, 127, 37, 37, 157, 1145, 587, 317, 659, 1523, 487, 865, 4879, 463, 1351, 4471]

cp's OEIS Frontend

A177463 The smallest k such that Catalan(n)+k and Catalan(n)-k are both prime.

Table of values

List of values