A173740 - cp's OEIS frontend

A173740 Triangle T(n,k) = binomial(n,k) + 2 for 1 <= k <= n - 1, n >= 2, and T(n,0) = T(n,n) = 1 for n >= 0, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	5
8	5
9	1
10	1
11	6
12	8
13	6
14	1
15	1
16	7
17	12
18	12
19	7
20	1
21	1
22	8
23	17
24	22
25	17
26	8
27	1
28	1
29	9
30	23
31	37
32	37
33	23
34	9
35	1
36	1
37	10
38	30
39	58
40	72
41	58
42	30
43	10
44	1
45	1
46	11
47	38
48	86
49	128
50	128
51	86
52	38
53	11
54	1
55	1
56	12
57	47
58	122
59	212
60	254
61	212
62	122
63	47
64	12
65	1
66	1
67	13
68	57
69	167
70	332
71	464
72	464
73	332
74	167
75	57
76	13
77	1

[1, 1, 1, 1, 4, 1, 1, 5, 5, 1, 1, 6, 8, 6, 1, 1, 7, 12, 12, 7, 1, 1, 8, 17, 22, 17, 8, 1, 1, 9, 23, 37, 37, 23, 9, 1, 1, 10, 30, 58, 72, 58, 30, 10, 1, 1, 11, 38, 86, 128, 128, 86, 38, 11, 1, 1, 12, 47, 122, 212, 254, 212, 122, 47, 12, 1, 1, 13, 57, 167, 332, 464, 464, 332, 167, 57, 13, 1]

cp's OEIS Frontend

A173740 Triangle T(n,k) = binomial(n,k) + 2 for 1 <= k <= n - 1, n >= 2, and T(n,0) = T(n,n) = 1 for n >= 0, read by rows.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	5
8	5
9	1
10	1
11	6
12	8
13	6
14	1
15	1
16	7
17	12
18	12
19	7
20	1
21	1
22	8
23	17
24	22
25	17
26	8
27	1
28	1
29	9
30	23
31	37
32	37
33	23
34	9
35	1
36	1
37	10
38	30
39	58
40	72
41	58
42	30
43	10
44	1
45	1
46	11
47	38
48	86
49	128
50	128
51	86
52	38
53	11
54	1
55	1
56	12
57	47
58	122
59	212
60	254
61	212
62	122
63	47
64	12
65	1
66	1
67	13
68	57
69	167
70	332
71	464
72	464
73	332
74	167
75	57
76	13
77	1

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	5
8	5
9	1
10	1
11	6
12	8
13	6
14	1
15	1
16	7
17	12
18	12
19	7
20	1
21	1
22	8
23	17
24	22
25	17
26	8
27	1
28	1
29	9
30	23
31	37
32	37
33	23
34	9
35	1
36	1
37	10
38	30
39	58
40	72
41	58
42	30
43	10
44	1
45	1
46	11
47	38
48	86
49	128
50	128
51	86
52	38
53	11
54	1
55	1
56	12
57	47
58	122
59	212
60	254
61	212
62	122
63	47
64	12
65	1
66	1
67	13
68	57
69	167
70	332
71	464
72	464
73	332
74	167
75	57
76	13
77	1

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	5
8	5
9	1
10	1
11	6
12	8
13	6
14	1
15	1
16	7
17	12
18	12
19	7
20	1
21	1
22	8
23	17
24	22
25	17
26	8
27	1
28	1
29	9
30	23
31	37
32	37
33	23
34	9
35	1
36	1
37	10
38	30
39	58
40	72
41	58
42	30
43	10
44	1
45	1
46	11
47	38
48	86
49	128
50	128
51	86
52	38
53	11
54	1
55	1
56	12
57	47
58	122
59	212
60	254
61	212
62	122
63	47
64	12
65	1
66	1
67	13
68	57
69	167
70	332
71	464
72	464
73	332
74	167
75	57
76	13
77	1