A144216 - cp's OEIS frontend

A144216 C(m,2)+C(n,2), m>=1, n>=1: a rectangular array R read by antidiagonals.

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

[0, 1, 1, 3, 2, 3, 6, 4, 4, 6, 10, 7, 6, 7, 10, 15, 11, 9, 9, 11, 15, 21, 16, 13, 12, 13, 16, 21, 28, 22, 18, 16, 16, 18, 22, 28, 36, 29, 24, 21, 20, 21, 24, 29, 36, 45, 37, 31, 27, 25, 25, 27, 31, 37, 45, 55, 46, 39, 34, 31, 30, 31, 34, 39, 46, 55, 66, 56, 48, 42, 38, 36, 36, 38]

cp's OEIS Frontend

A144216 C(m,2)+C(n,2), m>=1, n>=1: a rectangular array R read by antidiagonals.

Table of values

List of values

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

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

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