A080641 - cp's OEIS frontend

A080641 a(1) = 4; for n>1, a(n) is taken to be the smallest integer greater than a(n-1) which is consistent with the condition "n is a member of the sequence if and only if a(n) is divisible by 5".

n	a(n)
1	4
2	6
3	7
4	10
5	11
6	15
7	20
8	21
9	22
10	25
11	30
12	31
13	32
14	33
15	35
16	36
17	37
18	38
19	39
20	40
21	45
22	50
23	51
24	52
25	55
26	56
27	57
28	58
29	59
30	60
31	65
32	70
33	75
34	76
35	80
36	85
37	90
38	95
39	100
40	105
41	106
42	107
43	108
44	109
45	110
46	111
47	112
48	113
49	114
50	115
51	120
52	125
53	126
54	127
55	130
56	135
57	140
58	145
59	150
60	155
61	156
62	157

[4, 6, 7, 10, 11, 15, 20, 21, 22, 25, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 45, 50, 51, 52, 55, 56, 57, 58, 59, 60, 65, 70, 75, 76, 80, 85, 90, 95, 100, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 120, 125, 126, 127, 130, 135, 140, 145, 150, 155, 156, 157]

cp's OEIS Frontend

A080641 a(1) = 4; for n>1, a(n) is taken to be the smallest integer greater than a(n-1) which is consistent with the condition "n is a member of the sequence if and only if a(n) is divisible by 5".

Table of values

List of values

n	a(n)
1	4
2	6
3	7
4	10
5	11
6	15
7	20
8	21
9	22
10	25
11	30
12	31
13	32
14	33
15	35
16	36
17	37
18	38
19	39
20	40
21	45
22	50
23	51
24	52
25	55
26	56
27	57
28	58
29	59
30	60
31	65
32	70
33	75
34	76
35	80
36	85
37	90
38	95
39	100
40	105
41	106
42	107
43	108
44	109
45	110
46	111
47	112
48	113
49	114
50	115
51	120
52	125
53	126
54	127
55	130
56	135
57	140
58	145
59	150
60	155
61	156
62	157

n	a(n)
1	4
2	6
3	7
4	10
5	11
6	15
7	20
8	21
9	22
10	25
11	30
12	31
13	32
14	33
15	35
16	36
17	37
18	38
19	39
20	40
21	45
22	50
23	51
24	52
25	55
26	56
27	57
28	58
29	59
30	60
31	65
32	70
33	75
34	76
35	80
36	85
37	90
38	95
39	100
40	105
41	106
42	107
43	108
44	109
45	110
46	111
47	112
48	113
49	114
50	115
51	120
52	125
53	126
54	127
55	130
56	135
57	140
58	145
59	150
60	155
61	156
62	157

n	a(n)
1	4
2	6
3	7
4	10
5	11
6	15
7	20
8	21
9	22
10	25
11	30
12	31
13	32
14	33
15	35
16	36
17	37
18	38
19	39
20	40
21	45
22	50
23	51
24	52
25	55
26	56
27	57
28	58
29	59
30	60
31	65
32	70
33	75
34	76
35	80
36	85
37	90
38	95
39	100
40	105
41	106
42	107
43	108
44	109
45	110
46	111
47	112
48	113
49	114
50	115
51	120
52	125
53	126
54	127
55	130
56	135
57	140
58	145
59	150
60	155
61	156
62	157