A338796 - cp's OEIS frontend

A338796 Triangle T read by rows: T(n, k) is the k-th row sum of the symmetric Toeplitz matrix M(n) whose first row consists of a single zero followed by successive positive integers repeated (A004526).

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	2
7	4
8	3
9	3
10	4
11	6
12	5
13	4
14	5
15	6
16	9
17	7
18	6
19	6
20	7
21	9
22	12
23	10
24	8
25	8
26	8
27	10
28	12
29	16
30	13
31	11
32	10
33	10
34	11
35	13
36	16
37	20
38	17
39	14
40	13
41	12
42	13
43	14
44	17
45	20
46	25
47	21
48	18
49	16
50	15
51	15
52	16
53	18
54	21
55	25
56	30
57	26
58	22
59	20
60	18
61	18
62	18
63	20
64	22
65	26
66	30
67	36
68	31
69	27
70	24
71	22
72	21
73	21
74	22
75	24
76	27
77	31
78	36

[0, 1, 1, 2, 2, 2, 4, 3, 3, 4, 6, 5, 4, 5, 6, 9, 7, 6, 6, 7, 9, 12, 10, 8, 8, 8, 10, 12, 16, 13, 11, 10, 10, 11, 13, 16, 20, 17, 14, 13, 12, 13, 14, 17, 20, 25, 21, 18, 16, 15, 15, 16, 18, 21, 25, 30, 26, 22, 20, 18, 18, 18, 20, 22, 26, 30, 36, 31, 27, 24, 22, 21, 21, 22, 24, 27, 31, 36]

cp's OEIS Frontend

A338796 Triangle T read by rows: T(n, k) is the k-th row sum of the symmetric Toeplitz matrix M(n) whose first row consists of a single zero followed by successive positive integers repeated (A004526).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	2
7	4
8	3
9	3
10	4
11	6
12	5
13	4
14	5
15	6
16	9
17	7
18	6
19	6
20	7
21	9
22	12
23	10
24	8
25	8
26	8
27	10
28	12
29	16
30	13
31	11
32	10
33	10
34	11
35	13
36	16
37	20
38	17
39	14
40	13
41	12
42	13
43	14
44	17
45	20
46	25
47	21
48	18
49	16
50	15
51	15
52	16
53	18
54	21
55	25
56	30
57	26
58	22
59	20
60	18
61	18
62	18
63	20
64	22
65	26
66	30
67	36
68	31
69	27
70	24
71	22
72	21
73	21
74	22
75	24
76	27
77	31
78	36

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	2
7	4
8	3
9	3
10	4
11	6
12	5
13	4
14	5
15	6
16	9
17	7
18	6
19	6
20	7
21	9
22	12
23	10
24	8
25	8
26	8
27	10
28	12
29	16
30	13
31	11
32	10
33	10
34	11
35	13
36	16
37	20
38	17
39	14
40	13
41	12
42	13
43	14
44	17
45	20
46	25
47	21
48	18
49	16
50	15
51	15
52	16
53	18
54	21
55	25
56	30
57	26
58	22
59	20
60	18
61	18
62	18
63	20
64	22
65	26
66	30
67	36
68	31
69	27
70	24
71	22
72	21
73	21
74	22
75	24
76	27
77	31
78	36

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	2
7	4
8	3
9	3
10	4
11	6
12	5
13	4
14	5
15	6
16	9
17	7
18	6
19	6
20	7
21	9
22	12
23	10
24	8
25	8
26	8
27	10
28	12
29	16
30	13
31	11
32	10
33	10
34	11
35	13
36	16
37	20
38	17
39	14
40	13
41	12
42	13
43	14
44	17
45	20
46	25
47	21
48	18
49	16
50	15
51	15
52	16
53	18
54	21
55	25
56	30
57	26
58	22
59	20
60	18
61	18
62	18
63	20
64	22
65	26
66	30
67	36
68	31
69	27
70	24
71	22
72	21
73	21
74	22
75	24
76	27
77	31
78	36