A101159 - cp's OEIS frontend

A101159 Let j be the smallest integer for which n+(n+1)+...+(n+j) is a square; then a(n) = n+j.

n	a(n)
1	1
2	4
3	7
4	4
5	13
6	16
7	19
8	22
9	9
10	28
11	13
12	13
13	37
14	40
15	43
16	16
17	49
18	22
19	55
20	58
21	28
22	64
23	67
24	25
25	25
26	28
27	79
28	82
29	85
30	88
31	91
32	40
33	97
34	100
35	40
36	36
37	44
38	112
39	49
40	41
41	121
42	124
43	47
44	130
45	53
46	58
47	49
48	142
49	49
50	148
51	151
52	69
53	67
54	160
55	163
56	166
57	64
58	67
59	175
60	61

[1, 4, 7, 4, 13, 16, 19, 22, 9, 28, 13, 13, 37, 40, 43, 16, 49, 22, 55, 58, 28, 64, 67, 25, 25, 28, 79, 82, 85, 88, 91, 40, 97, 100, 40, 36, 44, 112, 49, 41, 121, 124, 47, 130, 53, 58, 49, 142, 49, 148, 151, 69, 67, 160, 163, 166, 64, 67, 175, 61]

cp's OEIS Frontend

A101159 Let j be the smallest integer for which n+(n+1)+...+(n+j) is a square; then a(n) = n+j.

Table of values

List of values

n	a(n)
1	1
2	4
3	7
4	4
5	13
6	16
7	19
8	22
9	9
10	28
11	13
12	13
13	37
14	40
15	43
16	16
17	49
18	22
19	55
20	58
21	28
22	64
23	67
24	25
25	25
26	28
27	79
28	82
29	85
30	88
31	91
32	40
33	97
34	100
35	40
36	36
37	44
38	112
39	49
40	41
41	121
42	124
43	47
44	130
45	53
46	58
47	49
48	142
49	49
50	148
51	151
52	69
53	67
54	160
55	163
56	166
57	64
58	67
59	175
60	61

n	a(n)
1	1
2	4
3	7
4	4
5	13
6	16
7	19
8	22
9	9
10	28
11	13
12	13
13	37
14	40
15	43
16	16
17	49
18	22
19	55
20	58
21	28
22	64
23	67
24	25
25	25
26	28
27	79
28	82
29	85
30	88
31	91
32	40
33	97
34	100
35	40
36	36
37	44
38	112
39	49
40	41
41	121
42	124
43	47
44	130
45	53
46	58
47	49
48	142
49	49
50	148
51	151
52	69
53	67
54	160
55	163
56	166
57	64
58	67
59	175
60	61

n	a(n)
1	1
2	4
3	7
4	4
5	13
6	16
7	19
8	22
9	9
10	28
11	13
12	13
13	37
14	40
15	43
16	16
17	49
18	22
19	55
20	58
21	28
22	64
23	67
24	25
25	25
26	28
27	79
28	82
29	85
30	88
31	91
32	40
33	97
34	100
35	40
36	36
37	44
38	112
39	49
40	41
41	121
42	124
43	47
44	130
45	53
46	58
47	49
48	142
49	49
50	148
51	151
52	69
53	67
54	160
55	163
56	166
57	64
58	67
59	175
60	61