A376133 - cp's OEIS frontend

A376133 Triangle T read by rows: T(n, 1) = (2nn - 4n + 7 + (-1)^n) / 4 and T(n, k) = T(n, k-1) + (-1)^k 2 * (n+1-k) for k >= 2.

n	a(n)
1	1
2	2
3	4
4	3
5	7
6	5
7	6
8	12
9	8
10	10
11	9
12	17
13	11
14	15
15	13
16	14
17	24
18	16
19	22
20	18
21	20
22	19
23	31
24	21
25	29
26	23
27	27
28	25
29	26
30	40
31	28
32	38
33	30
34	36
35	32
36	34
37	33
38	49
39	35
40	47
41	37
42	45
43	39
44	43
45	41
46	42
47	60
48	44
49	58
50	46
51	56
52	48
53	54
54	50
55	52
56	51
57	71
58	53
59	69
60	55
61	67
62	57
63	65
64	59
65	63
66	61
67	62
68	84
69	64
70	82
71	66
72	80
73	68
74	78
75	70
76	76
77	72
78	74

[1, 2, 4, 3, 7, 5, 6, 12, 8, 10, 9, 17, 11, 15, 13, 14, 24, 16, 22, 18, 20, 19, 31, 21, 29, 23, 27, 25, 26, 40, 28, 38, 30, 36, 32, 34, 33, 49, 35, 47, 37, 45, 39, 43, 41, 42, 60, 44, 58, 46, 56, 48, 54, 50, 52, 51, 71, 53, 69, 55, 67, 57, 65, 59, 63, 61, 62, 84, 64, 82, 66, 80, 68, 78, 70, 76, 72, 74]

cp's OEIS Frontend

A376133 Triangle T read by rows: T(n, 1) = (2nn - 4n + 7 + (-1)^n) / 4 and T(n, k) = T(n, k-1) + (-1)^k 2 * (n+1-k) for k >= 2.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	7
6	5
7	6
8	12
9	8
10	10
11	9
12	17
13	11
14	15
15	13
16	14
17	24
18	16
19	22
20	18
21	20
22	19
23	31
24	21
25	29
26	23
27	27
28	25
29	26
30	40
31	28
32	38
33	30
34	36
35	32
36	34
37	33
38	49
39	35
40	47
41	37
42	45
43	39
44	43
45	41
46	42
47	60
48	44
49	58
50	46
51	56
52	48
53	54
54	50
55	52
56	51
57	71
58	53
59	69
60	55
61	67
62	57
63	65
64	59
65	63
66	61
67	62
68	84
69	64
70	82
71	66
72	80
73	68
74	78
75	70
76	76
77	72
78	74

n	a(n)
1	1
2	2
3	4
4	3
5	7
6	5
7	6
8	12
9	8
10	10
11	9
12	17
13	11
14	15
15	13
16	14
17	24
18	16
19	22
20	18
21	20
22	19
23	31
24	21
25	29
26	23
27	27
28	25
29	26
30	40
31	28
32	38
33	30
34	36
35	32
36	34
37	33
38	49
39	35
40	47
41	37
42	45
43	39
44	43
45	41
46	42
47	60
48	44
49	58
50	46
51	56
52	48
53	54
54	50
55	52
56	51
57	71
58	53
59	69
60	55
61	67
62	57
63	65
64	59
65	63
66	61
67	62
68	84
69	64
70	82
71	66
72	80
73	68
74	78
75	70
76	76
77	72
78	74

cp's OEIS Frontend

A376133 Triangle T read by rows: T(n, 1) = (2*n*n - 4*n + 7 + (-1)^n) / 4 and T(n, k) = T(n, k-1) + (-1)^k * 2 * (n+1-k) for k >= 2.

Table of values

List of values

A376133 Triangle T read by rows: T(n, 1) = (2nn - 4n + 7 + (-1)^n) / 4 and T(n, k) = T(n, k-1) + (-1)^k 2 * (n+1-k) for k >= 2.

n	a(n)
1	1
2	2
3	4
4	3
5	7
6	5
7	6
8	12
9	8
10	10
11	9
12	17
13	11
14	15
15	13
16	14
17	24
18	16
19	22
20	18
21	20
22	19
23	31
24	21
25	29
26	23
27	27
28	25
29	26
30	40
31	28
32	38
33	30
34	36
35	32
36	34
37	33
38	49
39	35
40	47
41	37
42	45
43	39
44	43
45	41
46	42
47	60
48	44
49	58
50	46
51	56
52	48
53	54
54	50
55	52
56	51
57	71
58	53
59	69
60	55
61	67
62	57
63	65
64	59
65	63
66	61
67	62
68	84
69	64
70	82
71	66
72	80
73	68
74	78
75	70
76	76
77	72
78	74