A080904 - cp's OEIS frontend

A080904 a(1)=1; for n>1, a(n)=a(n-1)-4 if n is already in the sequence, a(n)=a(n-1)+5 otherwise.

n	a(n)
1	1
2	6
3	11
4	16
5	21
6	17
7	22
8	27
9	32
10	37
11	33
12	38
13	43
14	48
15	53
16	49
17	45
18	50
19	55
20	60
21	56
22	52
23	57
24	62
25	67
26	72
27	68
28	73
29	78
30	83
31	88
32	84
33	80
34	85
35	90
36	95
37	91
38	87
39	92
40	97
41	102
42	107
43	103
44	108
45	104
46	109
47	114
48	110
49	106
50	102
51	107
52	103
53	99
54	104
55	100
56	96
57	92
58	97
59	102
60	98
61	103
62	99

[1, 6, 11, 16, 21, 17, 22, 27, 32, 37, 33, 38, 43, 48, 53, 49, 45, 50, 55, 60, 56, 52, 57, 62, 67, 72, 68, 73, 78, 83, 88, 84, 80, 85, 90, 95, 91, 87, 92, 97, 102, 107, 103, 108, 104, 109, 114, 110, 106, 102, 107, 103, 99, 104, 100, 96, 92, 97, 102, 98, 103, 99]

cp's OEIS Frontend

A080904 a(1)=1; for n>1, a(n)=a(n-1)-4 if n is already in the sequence, a(n)=a(n-1)+5 otherwise.

Table of values

List of values

n	a(n)
1	1
2	6
3	11
4	16
5	21
6	17
7	22
8	27
9	32
10	37
11	33
12	38
13	43
14	48
15	53
16	49
17	45
18	50
19	55
20	60
21	56
22	52
23	57
24	62
25	67
26	72
27	68
28	73
29	78
30	83
31	88
32	84
33	80
34	85
35	90
36	95
37	91
38	87
39	92
40	97
41	102
42	107
43	103
44	108
45	104
46	109
47	114
48	110
49	106
50	102
51	107
52	103
53	99
54	104
55	100
56	96
57	92
58	97
59	102
60	98
61	103
62	99

n	a(n)
1	1
2	6
3	11
4	16
5	21
6	17
7	22
8	27
9	32
10	37
11	33
12	38
13	43
14	48
15	53
16	49
17	45
18	50
19	55
20	60
21	56
22	52
23	57
24	62
25	67
26	72
27	68
28	73
29	78
30	83
31	88
32	84
33	80
34	85
35	90
36	95
37	91
38	87
39	92
40	97
41	102
42	107
43	103
44	108
45	104
46	109
47	114
48	110
49	106
50	102
51	107
52	103
53	99
54	104
55	100
56	96
57	92
58	97
59	102
60	98
61	103
62	99

n	a(n)
1	1
2	6
3	11
4	16
5	21
6	17
7	22
8	27
9	32
10	37
11	33
12	38
13	43
14	48
15	53
16	49
17	45
18	50
19	55
20	60
21	56
22	52
23	57
24	62
25	67
26	72
27	68
28	73
29	78
30	83
31	88
32	84
33	80
34	85
35	90
36	95
37	91
38	87
39	92
40	97
41	102
42	107
43	103
44	108
45	104
46	109
47	114
48	110
49	106
50	102
51	107
52	103
53	99
54	104
55	100
56	96
57	92
58	97
59	102
60	98
61	103
62	99