A043693 - cp's OEIS frontend

A043693 Numbers whose base-4 representation has an even number of runs.

n	a(n)
1	4
2	6
3	7
4	8
5	9
6	11
7	12
8	13
9	14
10	16
11	20
12	22
13	23
14	26
15	31
16	32
17	37
18	40
19	41
20	43
21	47
22	48
23	53
24	58
25	60
26	61
27	62
28	64
29	68
30	70
31	71
32	72
33	73
34	75
35	76
36	77
37	78
38	80
39	84
40	86
41	87
42	90
43	95
44	97
45	98
46	99
47	100
48	102
49	103
50	106
51	108
52	109
53	110
54	113
55	114
56	115
57	116
58	118

[4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 20, 22, 23, 26, 31, 32, 37, 40, 41, 43, 47, 48, 53, 58, 60, 61, 62, 64, 68, 70, 71, 72, 73, 75, 76, 77, 78, 80, 84, 86, 87, 90, 95, 97, 98, 99, 100, 102, 103, 106, 108, 109, 110, 113, 114, 115, 116, 118]

cp's OEIS Frontend

A043693 Numbers whose base-4 representation has an even number of runs.

Table of values

List of values

n	a(n)
1	4
2	6
3	7
4	8
5	9
6	11
7	12
8	13
9	14
10	16
11	20
12	22
13	23
14	26
15	31
16	32
17	37
18	40
19	41
20	43
21	47
22	48
23	53
24	58
25	60
26	61
27	62
28	64
29	68
30	70
31	71
32	72
33	73
34	75
35	76
36	77
37	78
38	80
39	84
40	86
41	87
42	90
43	95
44	97
45	98
46	99
47	100
48	102
49	103
50	106
51	108
52	109
53	110
54	113
55	114
56	115
57	116
58	118

n	a(n)
1	4
2	6
3	7
4	8
5	9
6	11
7	12
8	13
9	14
10	16
11	20
12	22
13	23
14	26
15	31
16	32
17	37
18	40
19	41
20	43
21	47
22	48
23	53
24	58
25	60
26	61
27	62
28	64
29	68
30	70
31	71
32	72
33	73
34	75
35	76
36	77
37	78
38	80
39	84
40	86
41	87
42	90
43	95
44	97
45	98
46	99
47	100
48	102
49	103
50	106
51	108
52	109
53	110
54	113
55	114
56	115
57	116
58	118

n	a(n)
1	4
2	6
3	7
4	8
5	9
6	11
7	12
8	13
9	14
10	16
11	20
12	22
13	23
14	26
15	31
16	32
17	37
18	40
19	41
20	43
21	47
22	48
23	53
24	58
25	60
26	61
27	62
28	64
29	68
30	70
31	71
32	72
33	73
34	75
35	76
36	77
37	78
38	80
39	84
40	86
41	87
42	90
43	95
44	97
45	98
46	99
47	100
48	102
49	103
50	106
51	108
52	109
53	110
54	113
55	114
56	115
57	116
58	118