A131830 - cp's OEIS frontend

A131830 Triangle read by rows: T(n,0) = T(n,n) = n + 1 for n >= 0, and T(n,k) = binomial(n,k) for 1 <= k <= n - 1, n >= 2.

n	a(n)
0	1
1	2
2	2
3	3
4	2
5	3
6	4
7	3
8	3
9	4
10	5
11	4
12	6
13	4
14	5
15	6
16	5
17	10
18	10
19	5
20	6
21	7
22	6
23	15
24	20
25	15
26	6
27	7
28	8
29	7
30	21
31	35
32	35
33	21
34	7
35	8
36	9
37	8
38	28
39	56
40	70
41	56
42	28
43	8
44	9
45	10
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	9
54	10
55	11
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	10
65	11
66	12
67	11
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11
77	12

[1, 2, 2, 3, 2, 3, 4, 3, 3, 4, 5, 4, 6, 4, 5, 6, 5, 10, 10, 5, 6, 7, 6, 15, 20, 15, 6, 7, 8, 7, 21, 35, 35, 21, 7, 8, 9, 8, 28, 56, 70, 56, 28, 8, 9, 10, 9, 36, 84, 126, 126, 84, 36, 9, 10, 11, 10, 45, 120, 210, 252, 210, 120, 45, 10, 11, 12, 11, 55, 165, 330, 462, 462, 330, 165, 55, 11, 12]

cp's OEIS Frontend

A131830 Triangle read by rows: T(n,0) = T(n,n) = n + 1 for n >= 0, and T(n,k) = binomial(n,k) for 1 <= k <= n - 1, n >= 2.

Table of values

List of values

n	a(n)
0	1
1	2
2	2
3	3
4	2
5	3
6	4
7	3
8	3
9	4
10	5
11	4
12	6
13	4
14	5
15	6
16	5
17	10
18	10
19	5
20	6
21	7
22	6
23	15
24	20
25	15
26	6
27	7
28	8
29	7
30	21
31	35
32	35
33	21
34	7
35	8
36	9
37	8
38	28
39	56
40	70
41	56
42	28
43	8
44	9
45	10
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	9
54	10
55	11
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	10
65	11
66	12
67	11
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11
77	12

n	a(n)
0	1
1	2
2	2
3	3
4	2
5	3
6	4
7	3
8	3
9	4
10	5
11	4
12	6
13	4
14	5
15	6
16	5
17	10
18	10
19	5
20	6
21	7
22	6
23	15
24	20
25	15
26	6
27	7
28	8
29	7
30	21
31	35
32	35
33	21
34	7
35	8
36	9
37	8
38	28
39	56
40	70
41	56
42	28
43	8
44	9
45	10
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	9
54	10
55	11
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	10
65	11
66	12
67	11
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11
77	12

n	a(n)
0	1
1	2
2	2
3	3
4	2
5	3
6	4
7	3
8	3
9	4
10	5
11	4
12	6
13	4
14	5
15	6
16	5
17	10
18	10
19	5
20	6
21	7
22	6
23	15
24	20
25	15
26	6
27	7
28	8
29	7
30	21
31	35
32	35
33	21
34	7
35	8
36	9
37	8
38	28
39	56
40	70
41	56
42	28
43	8
44	9
45	10
46	9
47	36
48	84
49	126
50	126
51	84
52	36
53	9
54	10
55	11
56	10
57	45
58	120
59	210
60	252
61	210
62	120
63	45
64	10
65	11
66	12
67	11
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11
77	12