A061601 - cp's OEIS frontend

A061601 9's complement of n: a(n) = 10^d - 1 - n where d is the number of digits in n. If a is a digit in n replace it with 9 - a.

n	a(n)
0	9
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	0
10	89
11	88
12	87
13	86
14	85
15	84
16	83
17	82
18	81
19	80
20	79
21	78
22	77
23	76
24	75
25	74
26	73
27	72
28	71
29	70
30	69
31	68
32	67
33	66
34	65
35	64
36	63
37	62
38	61
39	60
40	59
41	58
42	57
43	56
44	55
45	54
46	53
47	52
48	51
49	50
50	49
51	48
52	47
53	46
54	45
55	44
56	43
57	42
58	41
59	40
60	39
61	38
62	37
63	36
64	35
65	34
66	33
67	32
68	31
69	30
70	29
71	28

[9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28]

cp's OEIS Frontend

A061601 9's complement of n: a(n) = 10^d - 1 - n where d is the number of digits in n. If a is a digit in n replace it with 9 - a.

Table of values

List of values

n	a(n)
0	9
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	0
10	89
11	88
12	87
13	86
14	85
15	84
16	83
17	82
18	81
19	80
20	79
21	78
22	77
23	76
24	75
25	74
26	73
27	72
28	71
29	70
30	69
31	68
32	67
33	66
34	65
35	64
36	63
37	62
38	61
39	60
40	59
41	58
42	57
43	56
44	55
45	54
46	53
47	52
48	51
49	50
50	49
51	48
52	47
53	46
54	45
55	44
56	43
57	42
58	41
59	40
60	39
61	38
62	37
63	36
64	35
65	34
66	33
67	32
68	31
69	30
70	29
71	28

n	a(n)
0	9
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	0
10	89
11	88
12	87
13	86
14	85
15	84
16	83
17	82
18	81
19	80
20	79
21	78
22	77
23	76
24	75
25	74
26	73
27	72
28	71
29	70
30	69
31	68
32	67
33	66
34	65
35	64
36	63
37	62
38	61
39	60
40	59
41	58
42	57
43	56
44	55
45	54
46	53
47	52
48	51
49	50
50	49
51	48
52	47
53	46
54	45
55	44
56	43
57	42
58	41
59	40
60	39
61	38
62	37
63	36
64	35
65	34
66	33
67	32
68	31
69	30
70	29
71	28

n	a(n)
0	9
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	0
10	89
11	88
12	87
13	86
14	85
15	84
16	83
17	82
18	81
19	80
20	79
21	78
22	77
23	76
24	75
25	74
26	73
27	72
28	71
29	70
30	69
31	68
32	67
33	66
34	65
35	64
36	63
37	62
38	61
39	60
40	59
41	58
42	57
43	56
44	55
45	54
46	53
47	52
48	51
49	50
50	49
51	48
52	47
53	46
54	45
55	44
56	43
57	42
58	41
59	40
60	39
61	38
62	37
63	36
64	35
65	34
66	33
67	32
68	31
69	30
70	29
71	28