A124725 - cp's OEIS frontend

A124725 Triangle read by rows: T(n,k) = binomial(n,k) + binomial(n,k+2) (0 <= k <= n).

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	4
7	4
8	3
9	1
10	7
11	8
12	7
13	4
14	1
15	11
16	15
17	15
18	11
19	5
20	1
21	16
22	26
23	30
24	26
25	16
26	6
27	1
28	22
29	42
30	56
31	56
32	42
33	22
34	7
35	1
36	29
37	64
38	98
39	112
40	98
41	64
42	29
43	8
44	1
45	37
46	93
47	162
48	210
49	210
50	162
51	93
52	37
53	9
54	1
55	46
56	130
57	255
58	372
59	420
60	372
61	255
62	130
63	46
64	10
65	1
66	56
67	176
68	385
69	627
70	792
71	792
72	627

[1, 1, 1, 2, 2, 1, 4, 4, 3, 1, 7, 8, 7, 4, 1, 11, 15, 15, 11, 5, 1, 16, 26, 30, 26, 16, 6, 1, 22, 42, 56, 56, 42, 22, 7, 1, 29, 64, 98, 112, 98, 64, 29, 8, 1, 37, 93, 162, 210, 210, 162, 93, 37, 9, 1, 46, 130, 255, 372, 420, 372, 255, 130, 46, 10, 1, 56, 176, 385, 627, 792, 792, 627]

cp's OEIS Frontend

A124725 Triangle read by rows: T(n,k) = binomial(n,k) + binomial(n,k+2) (0 <= k <= n).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	4
7	4
8	3
9	1
10	7
11	8
12	7
13	4
14	1
15	11
16	15
17	15
18	11
19	5
20	1
21	16
22	26
23	30
24	26
25	16
26	6
27	1
28	22
29	42
30	56
31	56
32	42
33	22
34	7
35	1
36	29
37	64
38	98
39	112
40	98
41	64
42	29
43	8
44	1
45	37
46	93
47	162
48	210
49	210
50	162
51	93
52	37
53	9
54	1
55	46
56	130
57	255
58	372
59	420
60	372
61	255
62	130
63	46
64	10
65	1
66	56
67	176
68	385
69	627
70	792
71	792
72	627

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	4
7	4
8	3
9	1
10	7
11	8
12	7
13	4
14	1
15	11
16	15
17	15
18	11
19	5
20	1
21	16
22	26
23	30
24	26
25	16
26	6
27	1
28	22
29	42
30	56
31	56
32	42
33	22
34	7
35	1
36	29
37	64
38	98
39	112
40	98
41	64
42	29
43	8
44	1
45	37
46	93
47	162
48	210
49	210
50	162
51	93
52	37
53	9
54	1
55	46
56	130
57	255
58	372
59	420
60	372
61	255
62	130
63	46
64	10
65	1
66	56
67	176
68	385
69	627
70	792
71	792
72	627

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	4
7	4
8	3
9	1
10	7
11	8
12	7
13	4
14	1
15	11
16	15
17	15
18	11
19	5
20	1
21	16
22	26
23	30
24	26
25	16
26	6
27	1
28	22
29	42
30	56
31	56
32	42
33	22
34	7
35	1
36	29
37	64
38	98
39	112
40	98
41	64
42	29
43	8
44	1
45	37
46	93
47	162
48	210
49	210
50	162
51	93
52	37
53	9
54	1
55	46
56	130
57	255
58	372
59	420
60	372
61	255
62	130
63	46
64	10
65	1
66	56
67	176
68	385
69	627
70	792
71	792
72	627