A001161 - cp's OEIS frontend

A001161 Numbers containing an even number of letters.

n	a(n)
1	0
2	4
3	5
4	9
5	11
6	12
7	13
8	14
9	18
10	19
11	20
12	24
13	25
14	29
15	30
16	34
17	35
18	39
19	41
20	42
21	43
22	46
23	47
24	48
25	51
26	52
27	53
28	56
29	57
30	58
31	61
32	62
33	63
34	66
35	67
36	68
37	71
38	72
39	73
40	76
41	77
42	78
43	80
44	84
45	85
46	89
47	90
48	94
49	95
50	99

[0, 4, 5, 9, 11, 12, 13, 14, 18, 19, 20, 24, 25, 29, 30, 34, 35, 39, 41, 42, 43, 46, 47, 48, 51, 52, 53, 56, 57, 58, 61, 62, 63, 66, 67, 68, 71, 72, 73, 76, 77, 78, 80, 84, 85, 89, 90, 94, 95, 99]

cp's OEIS Frontend

A001161 Numbers containing an even number of letters.

Table of values

List of values

n	a(n)
1	0
2	4
3	5
4	9
5	11
6	12
7	13
8	14
9	18
10	19
11	20
12	24
13	25
14	29
15	30
16	34
17	35
18	39
19	41
20	42
21	43
22	46
23	47
24	48
25	51
26	52
27	53
28	56
29	57
30	58
31	61
32	62
33	63
34	66
35	67
36	68
37	71
38	72
39	73
40	76
41	77
42	78
43	80
44	84
45	85
46	89
47	90
48	94
49	95
50	99

n	a(n)
1	0
2	4
3	5
4	9
5	11
6	12
7	13
8	14
9	18
10	19
11	20
12	24
13	25
14	29
15	30
16	34
17	35
18	39
19	41
20	42
21	43
22	46
23	47
24	48
25	51
26	52
27	53
28	56
29	57
30	58
31	61
32	62
33	63
34	66
35	67
36	68
37	71
38	72
39	73
40	76
41	77
42	78
43	80
44	84
45	85
46	89
47	90
48	94
49	95
50	99

n	a(n)
1	0
2	4
3	5
4	9
5	11
6	12
7	13
8	14
9	18
10	19
11	20
12	24
13	25
14	29
15	30
16	34
17	35
18	39
19	41
20	42
21	43
22	46
23	47
24	48
25	51
26	52
27	53
28	56
29	57
30	58
31	61
32	62
33	63
34	66
35	67
36	68
37	71
38	72
39	73
40	76
41	77
42	78
43	80
44	84
45	85
46	89
47	90
48	94
49	95
50	99