A335821 - cp's OEIS frontend

A335821 Triangular array T(n, k) = n^2 - k^2, read by rows.

n	a(n)
0	0
1	1
2	0
3	4
4	3
5	0
6	9
7	8
8	5
9	0
10	16
11	15
12	12
13	7
14	0
15	25
16	24
17	21
18	16
19	9
20	0
21	36
22	35
23	32
24	27
25	20
26	11
27	0
28	49
29	48
30	45
31	40
32	33
33	24
34	13
35	0
36	64
37	63
38	60
39	55
40	48
41	39
42	28
43	15
44	0
45	81
46	80
47	77
48	72
49	65
50	56
51	45
52	32
53	17
54	0
55	100
56	99
57	96
58	91
59	84
60	75
61	64
62	51
63	36
64	19
65	0
66	121
67	120
68	117
69	112
70	105
71	96
72	85
73	72
74	57
75	40
76	21
77	0

[0, 1, 0, 4, 3, 0, 9, 8, 5, 0, 16, 15, 12, 7, 0, 25, 24, 21, 16, 9, 0, 36, 35, 32, 27, 20, 11, 0, 49, 48, 45, 40, 33, 24, 13, 0, 64, 63, 60, 55, 48, 39, 28, 15, 0, 81, 80, 77, 72, 65, 56, 45, 32, 17, 0, 100, 99, 96, 91, 84, 75, 64, 51, 36, 19, 0, 121, 120, 117, 112, 105, 96, 85, 72, 57, 40, 21, 0]

cp's OEIS Frontend

A335821 Triangular array T(n, k) = n^2 - k^2, read by rows.

Table of values

List of values

n	a(n)
0	0
1	1
2	0
3	4
4	3
5	0
6	9
7	8
8	5
9	0
10	16
11	15
12	12
13	7
14	0
15	25
16	24
17	21
18	16
19	9
20	0
21	36
22	35
23	32
24	27
25	20
26	11
27	0
28	49
29	48
30	45
31	40
32	33
33	24
34	13
35	0
36	64
37	63
38	60
39	55
40	48
41	39
42	28
43	15
44	0
45	81
46	80
47	77
48	72
49	65
50	56
51	45
52	32
53	17
54	0
55	100
56	99
57	96
58	91
59	84
60	75
61	64
62	51
63	36
64	19
65	0
66	121
67	120
68	117
69	112
70	105
71	96
72	85
73	72
74	57
75	40
76	21
77	0

n	a(n)
0	0
1	1
2	0
3	4
4	3
5	0
6	9
7	8
8	5
9	0
10	16
11	15
12	12
13	7
14	0
15	25
16	24
17	21
18	16
19	9
20	0
21	36
22	35
23	32
24	27
25	20
26	11
27	0
28	49
29	48
30	45
31	40
32	33
33	24
34	13
35	0
36	64
37	63
38	60
39	55
40	48
41	39
42	28
43	15
44	0
45	81
46	80
47	77
48	72
49	65
50	56
51	45
52	32
53	17
54	0
55	100
56	99
57	96
58	91
59	84
60	75
61	64
62	51
63	36
64	19
65	0
66	121
67	120
68	117
69	112
70	105
71	96
72	85
73	72
74	57
75	40
76	21
77	0

n	a(n)
0	0
1	1
2	0
3	4
4	3
5	0
6	9
7	8
8	5
9	0
10	16
11	15
12	12
13	7
14	0
15	25
16	24
17	21
18	16
19	9
20	0
21	36
22	35
23	32
24	27
25	20
26	11
27	0
28	49
29	48
30	45
31	40
32	33
33	24
34	13
35	0
36	64
37	63
38	60
39	55
40	48
41	39
42	28
43	15
44	0
45	81
46	80
47	77
48	72
49	65
50	56
51	45
52	32
53	17
54	0
55	100
56	99
57	96
58	91
59	84
60	75
61	64
62	51
63	36
64	19
65	0
66	121
67	120
68	117
69	112
70	105
71	96
72	85
73	72
74	57
75	40
76	21
77	0