A173151 - cp's OEIS frontend

A173151 a(n) = a(n-1) - [a(n-1)/2] + a(n-2) - [a(n-5)/2] where [k] = floor(k).

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	4
6	5
7	6
8	7
9	9
10	10
11	12
12	13
13	16
14	17
15	20
16	21
17	25
18	26
19	30
20	31
21	36
22	37
23	42
24	43
25	49
26	50
27	56
28	57
29	64
30	65
31	72
32	73
33	81
34	82
35	90
36	91
37	100
38	101
39	110
40	111
41	121
42	122
43	132
44	133
45	144
46	145
47	156
48	157
49	169
50	170

[1, 1, 2, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 16, 17, 20, 21, 25, 26, 30, 31, 36, 37, 42, 43, 49, 50, 56, 57, 64, 65, 72, 73, 81, 82, 90, 91, 100, 101, 110, 111, 121, 122, 132, 133, 144, 145, 156, 157, 169, 170]

cp's OEIS Frontend

A173151 a(n) = a(n-1) - [a(n-1)/2] + a(n-2) - [a(n-5)/2] where [k] = floor(k).

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	4
6	5
7	6
8	7
9	9
10	10
11	12
12	13
13	16
14	17
15	20
16	21
17	25
18	26
19	30
20	31
21	36
22	37
23	42
24	43
25	49
26	50
27	56
28	57
29	64
30	65
31	72
32	73
33	81
34	82
35	90
36	91
37	100
38	101
39	110
40	111
41	121
42	122
43	132
44	133
45	144
46	145
47	156
48	157
49	169
50	170

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	4
6	5
7	6
8	7
9	9
10	10
11	12
12	13
13	16
14	17
15	20
16	21
17	25
18	26
19	30
20	31
21	36
22	37
23	42
24	43
25	49
26	50
27	56
28	57
29	64
30	65
31	72
32	73
33	81
34	82
35	90
36	91
37	100
38	101
39	110
40	111
41	121
42	122
43	132
44	133
45	144
46	145
47	156
48	157
49	169
50	170

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	4
6	5
7	6
8	7
9	9
10	10
11	12
12	13
13	16
14	17
15	20
16	21
17	25
18	26
19	30
20	31
21	36
22	37
23	42
24	43
25	49
26	50
27	56
28	57
29	64
30	65
31	72
32	73
33	81
34	82
35	90
36	91
37	100
38	101
39	110
40	111
41	121
42	122
43	132
44	133
45	144
46	145
47	156
48	157
49	169
50	170