A282573 - cp's OEIS frontend

A282573 The number of steps taken on a staircase of n steps during the following routine: Take steps of length 1 up a staircase until you can't step any further, then take steps of length 2 down until you can't step any further, and so on.

n	a(n)
1	1
2	3
3	4
4	7
5	10
6	12
7	13
8	19
9	20
10	23
11	26
12	32
13	33
14	39
15	40
16	41
17	46
18	53
19	57
20	56
21	63
22	65
23	66
24	77
25	81
26	80
27	83
28	94
29	90
30	97
31	100
32	102
33	103
34	117
35	118
36	117
37	128
38	126
39	127
40	138
41	149
42	151
43	152
44	162
45	163
46	160
47	161
48	175
49	176
50	194
51	195
52	186
53	197
54	212
55	216
56	215
57	218
58	220
59	221

[1, 3, 4, 7, 10, 12, 13, 19, 20, 23, 26, 32, 33, 39, 40, 41, 46, 53, 57, 56, 63, 65, 66, 77, 81, 80, 83, 94, 90, 97, 100, 102, 103, 117, 118, 117, 128, 126, 127, 138, 149, 151, 152, 162, 163, 160, 161, 175, 176, 194, 195, 186, 197, 212, 216, 215, 218, 220, 221]

cp's OEIS Frontend

A282573 The number of steps taken on a staircase of n steps during the following routine: Take steps of length 1 up a staircase until you can't step any further, then take steps of length 2 down until you can't step any further, and so on.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	7
5	10
6	12
7	13
8	19
9	20
10	23
11	26
12	32
13	33
14	39
15	40
16	41
17	46
18	53
19	57
20	56
21	63
22	65
23	66
24	77
25	81
26	80
27	83
28	94
29	90
30	97
31	100
32	102
33	103
34	117
35	118
36	117
37	128
38	126
39	127
40	138
41	149
42	151
43	152
44	162
45	163
46	160
47	161
48	175
49	176
50	194
51	195
52	186
53	197
54	212
55	216
56	215
57	218
58	220
59	221

n	a(n)
1	1
2	3
3	4
4	7
5	10
6	12
7	13
8	19
9	20
10	23
11	26
12	32
13	33
14	39
15	40
16	41
17	46
18	53
19	57
20	56
21	63
22	65
23	66
24	77
25	81
26	80
27	83
28	94
29	90
30	97
31	100
32	102
33	103
34	117
35	118
36	117
37	128
38	126
39	127
40	138
41	149
42	151
43	152
44	162
45	163
46	160
47	161
48	175
49	176
50	194
51	195
52	186
53	197
54	212
55	216
56	215
57	218
58	220
59	221

n	a(n)
1	1
2	3
3	4
4	7
5	10
6	12
7	13
8	19
9	20
10	23
11	26
12	32
13	33
14	39
15	40
16	41
17	46
18	53
19	57
20	56
21	63
22	65
23	66
24	77
25	81
26	80
27	83
28	94
29	90
30	97
31	100
32	102
33	103
34	117
35	118
36	117
37	128
38	126
39	127
40	138
41	149
42	151
43	152
44	162
45	163
46	160
47	161
48	175
49	176
50	194
51	195
52	186
53	197
54	212
55	216
56	215
57	218
58	220
59	221