A140869 - cp's OEIS frontend

A140869 Triangle read by rows where T(m,n) = floor((2mn+m+n-2)/2), m >= n >= 1.

n	a(n)
1	1
2	2
3	5
4	4
5	7
6	11
7	5
8	10
9	14
10	19
11	7
12	12
13	18
14	23
15	29
16	8
17	15
18	21
19	28
20	34
21	41
22	10
23	17
24	25
25	32
26	40
27	47
28	55
29	11
30	20
31	28
32	37
33	45
34	54
35	62
36	71
37	13
38	22
39	32
40	41
41	51
42	60
43	70
44	79
45	89
46	14
47	25
48	35
49	46
50	56
51	67
52	77
53	88
54	98
55	109
56	16
57	27
58	39
59	50
60	62
61	73
62	85
63	96
64	108
65	119
66	131
67	17
68	30
69	42
70	55
71	67
72	80
73	92
74	105
75	117
76	130
77	142
78	155

[1, 2, 5, 4, 7, 11, 5, 10, 14, 19, 7, 12, 18, 23, 29, 8, 15, 21, 28, 34, 41, 10, 17, 25, 32, 40, 47, 55, 11, 20, 28, 37, 45, 54, 62, 71, 13, 22, 32, 41, 51, 60, 70, 79, 89, 14, 25, 35, 46, 56, 67, 77, 88, 98, 109, 16, 27, 39, 50, 62, 73, 85, 96, 108, 119, 131, 17, 30, 42, 55, 67, 80, 92, 105, 117, 130, 142, 155]

cp's OEIS Frontend

A140869 Triangle read by rows where T(m,n) = floor((2mn+m+n-2)/2), m >= n >= 1.

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	4
5	7
6	11
7	5
8	10
9	14
10	19
11	7
12	12
13	18
14	23
15	29
16	8
17	15
18	21
19	28
20	34
21	41
22	10
23	17
24	25
25	32
26	40
27	47
28	55
29	11
30	20
31	28
32	37
33	45
34	54
35	62
36	71
37	13
38	22
39	32
40	41
41	51
42	60
43	70
44	79
45	89
46	14
47	25
48	35
49	46
50	56
51	67
52	77
53	88
54	98
55	109
56	16
57	27
58	39
59	50
60	62
61	73
62	85
63	96
64	108
65	119
66	131
67	17
68	30
69	42
70	55
71	67
72	80
73	92
74	105
75	117
76	130
77	142
78	155

n	a(n)
1	1
2	2
3	5
4	4
5	7
6	11
7	5
8	10
9	14
10	19
11	7
12	12
13	18
14	23
15	29
16	8
17	15
18	21
19	28
20	34
21	41
22	10
23	17
24	25
25	32
26	40
27	47
28	55
29	11
30	20
31	28
32	37
33	45
34	54
35	62
36	71
37	13
38	22
39	32
40	41
41	51
42	60
43	70
44	79
45	89
46	14
47	25
48	35
49	46
50	56
51	67
52	77
53	88
54	98
55	109
56	16
57	27
58	39
59	50
60	62
61	73
62	85
63	96
64	108
65	119
66	131
67	17
68	30
69	42
70	55
71	67
72	80
73	92
74	105
75	117
76	130
77	142
78	155

n	a(n)
1	1
2	2
3	5
4	4
5	7
6	11
7	5
8	10
9	14
10	19
11	7
12	12
13	18
14	23
15	29
16	8
17	15
18	21
19	28
20	34
21	41
22	10
23	17
24	25
25	32
26	40
27	47
28	55
29	11
30	20
31	28
32	37
33	45
34	54
35	62
36	71
37	13
38	22
39	32
40	41
41	51
42	60
43	70
44	79
45	89
46	14
47	25
48	35
49	46
50	56
51	67
52	77
53	88
54	98
55	109
56	16
57	27
58	39
59	50
60	62
61	73
62	85
63	96
64	108
65	119
66	131
67	17
68	30
69	42
70	55
71	67
72	80
73	92
74	105
75	117
76	130
77	142
78	155