A072007 - cp's OEIS frontend

A072007 a(0) = 0; for n>=1, a(n)=least nonnegative integer x such that |x-a(n-1)|>=n and x is not a(k) for any k

n	a(n)
0	0
1	1
2	3
3	6
4	2
5	7
6	13
7	4
8	12
9	21
10	5
11	16
12	28
13	8
14	22
15	37
16	9
17	26
18	44
19	10
20	30
21	51
22	11
23	34
24	58
25	14
26	40
27	67
28	15
29	45
30	75
31	17
32	49
33	82
34	18
35	53
36	89
37	19
38	57
39	96
40	20
41	61
42	103
43	23
44	68
45	113
46	24
47	71
48	119
49	25
50	76
51	127
52	27
53	80
54	134
55	29
56	85
57	142
58	31
59	90
60	150
61	32

[0, 1, 3, 6, 2, 7, 13, 4, 12, 21, 5, 16, 28, 8, 22, 37, 9, 26, 44, 10, 30, 51, 11, 34, 58, 14, 40, 67, 15, 45, 75, 17, 49, 82, 18, 53, 89, 19, 57, 96, 20, 61, 103, 23, 68, 113, 24, 71, 119, 25, 76, 127, 27, 80, 134, 29, 85, 142, 31, 90, 150, 32]

cp's OEIS Frontend

A072007 a(0) = 0; for n>=1, a(n)=least nonnegative integer x such that |x-a(n-1)|>=n and x is not a(k) for any k

Table of values

List of values

n	a(n)
0	0
1	1
2	3
3	6
4	2
5	7
6	13
7	4
8	12
9	21
10	5
11	16
12	28
13	8
14	22
15	37
16	9
17	26
18	44
19	10
20	30
21	51
22	11
23	34
24	58
25	14
26	40
27	67
28	15
29	45
30	75
31	17
32	49
33	82
34	18
35	53
36	89
37	19
38	57
39	96
40	20
41	61
42	103
43	23
44	68
45	113
46	24
47	71
48	119
49	25
50	76
51	127
52	27
53	80
54	134
55	29
56	85
57	142
58	31
59	90
60	150
61	32

n	a(n)
0	0
1	1
2	3
3	6
4	2
5	7
6	13
7	4
8	12
9	21
10	5
11	16
12	28
13	8
14	22
15	37
16	9
17	26
18	44
19	10
20	30
21	51
22	11
23	34
24	58
25	14
26	40
27	67
28	15
29	45
30	75
31	17
32	49
33	82
34	18
35	53
36	89
37	19
38	57
39	96
40	20
41	61
42	103
43	23
44	68
45	113
46	24
47	71
48	119
49	25
50	76
51	127
52	27
53	80
54	134
55	29
56	85
57	142
58	31
59	90
60	150
61	32

n	a(n)
0	0
1	1
2	3
3	6
4	2
5	7
6	13
7	4
8	12
9	21
10	5
11	16
12	28
13	8
14	22
15	37
16	9
17	26
18	44
19	10
20	30
21	51
22	11
23	34
24	58
25	14
26	40
27	67
28	15
29	45
30	75
31	17
32	49
33	82
34	18
35	53
36	89
37	19
38	57
39	96
40	20
41	61
42	103
43	23
44	68
45	113
46	24
47	71
48	119
49	25
50	76
51	127
52	27
53	80
54	134
55	29
56	85
57	142
58	31
59	90
60	150
61	32