A086270 - cp's OEIS frontend

A086270 Rectangular array T(k,n) of polygonal numbers, by antidiagonals.

n	a(n)
1	1
2	3
3	1
4	6
5	4
6	1
7	10
8	9
9	5
10	1
11	15
12	16
13	12
14	6
15	1
16	21
17	25
18	22
19	15
20	7
21	1
22	28
23	36
24	35
25	28
26	18
27	8
28	1
29	36
30	49
31	51
32	45
33	34
34	21
35	9
36	1
37	45
38	64
39	70
40	66
41	55
42	40
43	24
44	10
45	1
46	55
47	81
48	92
49	91
50	81
51	65
52	46
53	27
54	11
55	1
56	66
57	100
58	117
59	120
60	112
61	96
62	75
63	52
64	30
65	12
66	1
67	78
68	121
69	145
70	153
71	148
72	133
73	111

[1, 3, 1, 6, 4, 1, 10, 9, 5, 1, 15, 16, 12, 6, 1, 21, 25, 22, 15, 7, 1, 28, 36, 35, 28, 18, 8, 1, 36, 49, 51, 45, 34, 21, 9, 1, 45, 64, 70, 66, 55, 40, 24, 10, 1, 55, 81, 92, 91, 81, 65, 46, 27, 11, 1, 66, 100, 117, 120, 112, 96, 75, 52, 30, 12, 1, 78, 121, 145, 153, 148, 133, 111]

cp's OEIS Frontend

A086270 Rectangular array T(k,n) of polygonal numbers, by antidiagonals.

Table of values

List of values

n	a(n)
1	1
2	3
3	1
4	6
5	4
6	1
7	10
8	9
9	5
10	1
11	15
12	16
13	12
14	6
15	1
16	21
17	25
18	22
19	15
20	7
21	1
22	28
23	36
24	35
25	28
26	18
27	8
28	1
29	36
30	49
31	51
32	45
33	34
34	21
35	9
36	1
37	45
38	64
39	70
40	66
41	55
42	40
43	24
44	10
45	1
46	55
47	81
48	92
49	91
50	81
51	65
52	46
53	27
54	11
55	1
56	66
57	100
58	117
59	120
60	112
61	96
62	75
63	52
64	30
65	12
66	1
67	78
68	121
69	145
70	153
71	148
72	133
73	111

n	a(n)
1	1
2	3
3	1
4	6
5	4
6	1
7	10
8	9
9	5
10	1
11	15
12	16
13	12
14	6
15	1
16	21
17	25
18	22
19	15
20	7
21	1
22	28
23	36
24	35
25	28
26	18
27	8
28	1
29	36
30	49
31	51
32	45
33	34
34	21
35	9
36	1
37	45
38	64
39	70
40	66
41	55
42	40
43	24
44	10
45	1
46	55
47	81
48	92
49	91
50	81
51	65
52	46
53	27
54	11
55	1
56	66
57	100
58	117
59	120
60	112
61	96
62	75
63	52
64	30
65	12
66	1
67	78
68	121
69	145
70	153
71	148
72	133
73	111

n	a(n)
1	1
2	3
3	1
4	6
5	4
6	1
7	10
8	9
9	5
10	1
11	15
12	16
13	12
14	6
15	1
16	21
17	25
18	22
19	15
20	7
21	1
22	28
23	36
24	35
25	28
26	18
27	8
28	1
29	36
30	49
31	51
32	45
33	34
34	21
35	9
36	1
37	45
38	64
39	70
40	66
41	55
42	40
43	24
44	10
45	1
46	55
47	81
48	92
49	91
50	81
51	65
52	46
53	27
54	11
55	1
56	66
57	100
58	117
59	120
60	112
61	96
62	75
63	52
64	30
65	12
66	1
67	78
68	121
69	145
70	153
71	148
72	133
73	111