A091963 - cp's OEIS frontend

A091963 a(n) is the smallest gcd of two interior numbers on row n of Pascal's triangle ("interior" means that the 1's at the ends of the rows are excluded).

n	a(n)
2	2
3	3
4	2
5	5
6	2
7	7
8	2
9	3
10	2
11	11
12	3
13	13
14	2
15	3
16	2
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	5
26	2
27	3
28	4
29	29
30	6
31	31
32	2
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	6
43	43
44	4
45	3
46	2
47	47
48	3
49	7
50	2
51	3
52	4
53	53
54	2
55	5
56	7
57	3
58	2
59	59
60	4
61	61
62	2
63	7
64	2
65	5
66	6
67	67
68	4
69	3
70	10
71	71
72	4
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	3
82	2
83	83
84	12
85	5
86	2
87	3
88	4
89	89
90	9
91	7
92	4
93	3
94	2
95	5
96	3

[2, 3, 2, 5, 2, 7, 2, 3, 2, 11, 3, 13, 2, 3, 2, 17, 2, 19, 4, 3, 2, 23, 3, 5, 2, 3, 4, 29, 6, 31, 2, 3, 2, 5, 4, 37, 2, 3, 5, 41, 6, 43, 4, 3, 2, 47, 3, 7, 2, 3, 4, 53, 2, 5, 7, 3, 2, 59, 4, 61, 2, 7, 2, 5, 6, 67, 4, 3, 10, 71, 4, 73, 2, 3, 4, 7, 2, 79, 5, 3, 2, 83, 12, 5, 2, 3, 4, 89, 9, 7, 4, 3, 2, 5, 3]

cp's OEIS Frontend

A091963 a(n) is the smallest gcd of two interior numbers on row n of Pascal's triangle ("interior" means that the 1's at the ends of the rows are excluded).

Table of values

List of values

n	a(n)
2	2
3	3
4	2
5	5
6	2
7	7
8	2
9	3
10	2
11	11
12	3
13	13
14	2
15	3
16	2
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	5
26	2
27	3
28	4
29	29
30	6
31	31
32	2
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	6
43	43
44	4
45	3
46	2
47	47
48	3
49	7
50	2
51	3
52	4
53	53
54	2
55	5
56	7
57	3
58	2
59	59
60	4
61	61
62	2
63	7
64	2
65	5
66	6
67	67
68	4
69	3
70	10
71	71
72	4
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	3
82	2
83	83
84	12
85	5
86	2
87	3
88	4
89	89
90	9
91	7
92	4
93	3
94	2
95	5
96	3

n	a(n)
2	2
3	3
4	2
5	5
6	2
7	7
8	2
9	3
10	2
11	11
12	3
13	13
14	2
15	3
16	2
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	5
26	2
27	3
28	4
29	29
30	6
31	31
32	2
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	6
43	43
44	4
45	3
46	2
47	47
48	3
49	7
50	2
51	3
52	4
53	53
54	2
55	5
56	7
57	3
58	2
59	59
60	4
61	61
62	2
63	7
64	2
65	5
66	6
67	67
68	4
69	3
70	10
71	71
72	4
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	3
82	2
83	83
84	12
85	5
86	2
87	3
88	4
89	89
90	9
91	7
92	4
93	3
94	2
95	5
96	3

n	a(n)
2	2
3	3
4	2
5	5
6	2
7	7
8	2
9	3
10	2
11	11
12	3
13	13
14	2
15	3
16	2
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	5
26	2
27	3
28	4
29	29
30	6
31	31
32	2
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	6
43	43
44	4
45	3
46	2
47	47
48	3
49	7
50	2
51	3
52	4
53	53
54	2
55	5
56	7
57	3
58	2
59	59
60	4
61	61
62	2
63	7
64	2
65	5
66	6
67	67
68	4
69	3
70	10
71	71
72	4
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	3
82	2
83	83
84	12
85	5
86	2
87	3
88	4
89	89
90	9
91	7
92	4
93	3
94	2
95	5
96	3