A081031 - cp's OEIS frontend

A081031 Positions of white keys on piano keyboard, starting with A0 = the 1st key.

n	a(n)
1	1
2	3
3	4
4	6
5	8
6	9
7	11
8	13
9	15
10	16
11	18
12	20
13	21
14	23
15	25
16	27
17	28
18	30
19	32
20	33
21	35
22	37
23	39
24	40
25	42
26	44
27	45
28	47
29	49
30	51
31	52
32	54
33	56
34	57
35	59
36	61
37	63
38	64
39	66
40	68
41	69
42	71
43	73
44	75
45	76
46	78
47	80
48	81
49	83
50	85
51	87
52	88

[1, 3, 4, 6, 8, 9, 11, 13, 15, 16, 18, 20, 21, 23, 25, 27, 28, 30, 32, 33, 35, 37, 39, 40, 42, 44, 45, 47, 49, 51, 52, 54, 56, 57, 59, 61, 63, 64, 66, 68, 69, 71, 73, 75, 76, 78, 80, 81, 83, 85, 87, 88]

cp's OEIS Frontend

A081031 Positions of white keys on piano keyboard, starting with A0 = the 1st key.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	6
5	8
6	9
7	11
8	13
9	15
10	16
11	18
12	20
13	21
14	23
15	25
16	27
17	28
18	30
19	32
20	33
21	35
22	37
23	39
24	40
25	42
26	44
27	45
28	47
29	49
30	51
31	52
32	54
33	56
34	57
35	59
36	61
37	63
38	64
39	66
40	68
41	69
42	71
43	73
44	75
45	76
46	78
47	80
48	81
49	83
50	85
51	87
52	88

n	a(n)
1	1
2	3
3	4
4	6
5	8
6	9
7	11
8	13
9	15
10	16
11	18
12	20
13	21
14	23
15	25
16	27
17	28
18	30
19	32
20	33
21	35
22	37
23	39
24	40
25	42
26	44
27	45
28	47
29	49
30	51
31	52
32	54
33	56
34	57
35	59
36	61
37	63
38	64
39	66
40	68
41	69
42	71
43	73
44	75
45	76
46	78
47	80
48	81
49	83
50	85
51	87
52	88

n	a(n)
1	1
2	3
3	4
4	6
5	8
6	9
7	11
8	13
9	15
10	16
11	18
12	20
13	21
14	23
15	25
16	27
17	28
18	30
19	32
20	33
21	35
22	37
23	39
24	40
25	42
26	44
27	45
28	47
29	49
30	51
31	52
32	54
33	56
34	57
35	59
36	61
37	63
38	64
39	66
40	68
41	69
42	71
43	73
44	75
45	76
46	78
47	80
48	81
49	83
50	85
51	87
52	88