A349119 - cp's OEIS frontend

A349119 a(0) = 1; for n>0, a(n) is the smallest positive integer that has not previously occurred such that |n - a(n-1)| + a(n) is a square.

n	a(n)
0	1
1	4
2	2
3	3
4	8
5	6
6	9
7	7
8	15
9	10
10	16
11	11
12	24
13	5
14	27
15	13
16	22
17	20
18	14
19	31
20	25
21	12
22	26
23	33
24	40
25	21
26	44
27	19
28	55
29	23
30	18
31	36
32	32
33	35
34	48
35	51
36	34
37	46
38	17
39	42
40	47
41	30
42	37
43	43
44	63
45	82
46	28
47	45
48	61
49	52
50	62
51	38
52	50
53	78
54	57
55	79
56	41
57	65
58	29
59	70
60	39
61	59
62	97
63	66
64	98
65	67
66	80
67	68
68	49
69	101
70	69
71	119
72	53
73	124
74	71
75	60

[1, 4, 2, 3, 8, 6, 9, 7, 15, 10, 16, 11, 24, 5, 27, 13, 22, 20, 14, 31, 25, 12, 26, 33, 40, 21, 44, 19, 55, 23, 18, 36, 32, 35, 48, 51, 34, 46, 17, 42, 47, 30, 37, 43, 63, 82, 28, 45, 61, 52, 62, 38, 50, 78, 57, 79, 41, 65, 29, 70, 39, 59, 97, 66, 98, 67, 80, 68, 49, 101, 69, 119, 53, 124, 71, 60]

cp's OEIS Frontend

A349119 a(0) = 1; for n>0, a(n) is the smallest positive integer that has not previously occurred such that |n - a(n-1)| + a(n) is a square.

Table of values

List of values

n	a(n)
0	1
1	4
2	2
3	3
4	8
5	6
6	9
7	7
8	15
9	10
10	16
11	11
12	24
13	5
14	27
15	13
16	22
17	20
18	14
19	31
20	25
21	12
22	26
23	33
24	40
25	21
26	44
27	19
28	55
29	23
30	18
31	36
32	32
33	35
34	48
35	51
36	34
37	46
38	17
39	42
40	47
41	30
42	37
43	43
44	63
45	82
46	28
47	45
48	61
49	52
50	62
51	38
52	50
53	78
54	57
55	79
56	41
57	65
58	29
59	70
60	39
61	59
62	97
63	66
64	98
65	67
66	80
67	68
68	49
69	101
70	69
71	119
72	53
73	124
74	71
75	60

n	a(n)
0	1
1	4
2	2
3	3
4	8
5	6
6	9
7	7
8	15
9	10
10	16
11	11
12	24
13	5
14	27
15	13
16	22
17	20
18	14
19	31
20	25
21	12
22	26
23	33
24	40
25	21
26	44
27	19
28	55
29	23
30	18
31	36
32	32
33	35
34	48
35	51
36	34
37	46
38	17
39	42
40	47
41	30
42	37
43	43
44	63
45	82
46	28
47	45
48	61
49	52
50	62
51	38
52	50
53	78
54	57
55	79
56	41
57	65
58	29
59	70
60	39
61	59
62	97
63	66
64	98
65	67
66	80
67	68
68	49
69	101
70	69
71	119
72	53
73	124
74	71
75	60

n	a(n)
0	1
1	4
2	2
3	3
4	8
5	6
6	9
7	7
8	15
9	10
10	16
11	11
12	24
13	5
14	27
15	13
16	22
17	20
18	14
19	31
20	25
21	12
22	26
23	33
24	40
25	21
26	44
27	19
28	55
29	23
30	18
31	36
32	32
33	35
34	48
35	51
36	34
37	46
38	17
39	42
40	47
41	30
42	37
43	43
44	63
45	82
46	28
47	45
48	61
49	52
50	62
51	38
52	50
53	78
54	57
55	79
56	41
57	65
58	29
59	70
60	39
61	59
62	97
63	66
64	98
65	67
66	80
67	68
68	49
69	101
70	69
71	119
72	53
73	124
74	71
75	60