A064784 - cp's OEIS frontend

A064784 Difference between n-th triangular number t(n) and the largest square <= t(n).

n	a(n)
1	0
2	2
3	2
4	1
5	6
6	5
7	3
8	0
9	9
10	6
11	2
12	14
13	10
14	5
15	20
16	15
17	9
18	2
19	21
20	14
21	6
22	28
23	20
24	11
25	1
26	27
27	17
28	6
29	35
30	24
31	12
32	44
33	32
34	19
35	5
36	41
37	27
38	12
39	51
40	36
41	20
42	3
43	46
44	29
45	11
46	57
47	39
48	20
49	0
50	50
51	30
52	9
53	62
54	41
55	19
56	75
57	53
58	30
59	6
60	66
61	42
62	17
63	80
64	55
65	29
66	2
67	69
68	42
69	14
70	84
71	56
72	27
73	100
74	71
75	41
76	10
77	87
78	56

[0, 2, 2, 1, 6, 5, 3, 0, 9, 6, 2, 14, 10, 5, 20, 15, 9, 2, 21, 14, 6, 28, 20, 11, 1, 27, 17, 6, 35, 24, 12, 44, 32, 19, 5, 41, 27, 12, 51, 36, 20, 3, 46, 29, 11, 57, 39, 20, 0, 50, 30, 9, 62, 41, 19, 75, 53, 30, 6, 66, 42, 17, 80, 55, 29, 2, 69, 42, 14, 84, 56, 27, 100, 71, 41, 10, 87, 56]

cp's OEIS Frontend

A064784 Difference between n-th triangular number t(n) and the largest square <= t(n).

Table of values

List of values

n	a(n)
1	0
2	2
3	2
4	1
5	6
6	5
7	3
8	0
9	9
10	6
11	2
12	14
13	10
14	5
15	20
16	15
17	9
18	2
19	21
20	14
21	6
22	28
23	20
24	11
25	1
26	27
27	17
28	6
29	35
30	24
31	12
32	44
33	32
34	19
35	5
36	41
37	27
38	12
39	51
40	36
41	20
42	3
43	46
44	29
45	11
46	57
47	39
48	20
49	0
50	50
51	30
52	9
53	62
54	41
55	19
56	75
57	53
58	30
59	6
60	66
61	42
62	17
63	80
64	55
65	29
66	2
67	69
68	42
69	14
70	84
71	56
72	27
73	100
74	71
75	41
76	10
77	87
78	56

n	a(n)
1	0
2	2
3	2
4	1
5	6
6	5
7	3
8	0
9	9
10	6
11	2
12	14
13	10
14	5
15	20
16	15
17	9
18	2
19	21
20	14
21	6
22	28
23	20
24	11
25	1
26	27
27	17
28	6
29	35
30	24
31	12
32	44
33	32
34	19
35	5
36	41
37	27
38	12
39	51
40	36
41	20
42	3
43	46
44	29
45	11
46	57
47	39
48	20
49	0
50	50
51	30
52	9
53	62
54	41
55	19
56	75
57	53
58	30
59	6
60	66
61	42
62	17
63	80
64	55
65	29
66	2
67	69
68	42
69	14
70	84
71	56
72	27
73	100
74	71
75	41
76	10
77	87
78	56

n	a(n)
1	0
2	2
3	2
4	1
5	6
6	5
7	3
8	0
9	9
10	6
11	2
12	14
13	10
14	5
15	20
16	15
17	9
18	2
19	21
20	14
21	6
22	28
23	20
24	11
25	1
26	27
27	17
28	6
29	35
30	24
31	12
32	44
33	32
34	19
35	5
36	41
37	27
38	12
39	51
40	36
41	20
42	3
43	46
44	29
45	11
46	57
47	39
48	20
49	0
50	50
51	30
52	9
53	62
54	41
55	19
56	75
57	53
58	30
59	6
60	66
61	42
62	17
63	80
64	55
65	29
66	2
67	69
68	42
69	14
70	84
71	56
72	27
73	100
74	71
75	41
76	10
77	87
78	56