A298372 - cp's OEIS frontend

A298372 a(n), in decimal base, is the number of numbers k >= 0 with no more digits than n such that k + n can be computed without carry.

n	a(n)
0	1
1	9
2	8
3	7
4	6
5	5
6	4
7	3
8	2
9	1
10	90
11	81
12	72
13	63
14	54
15	45
16	36
17	27
18	18
19	9
20	80
21	72
22	64
23	56
24	48
25	40
26	32
27	24
28	16
29	8
30	70
31	63
32	56
33	49
34	42
35	35
36	28
37	21
38	14
39	7
40	60
41	54
42	48
43	42
44	36
45	30
46	24
47	18
48	12
49	6
50	50
51	45
52	40
53	35
54	30
55	25
56	20
57	15
58	10
59	5
60	40
61	36
62	32
63	28
64	24
65	20
66	16
67	12
68	8

[1, 9, 8, 7, 6, 5, 4, 3, 2, 1, 90, 81, 72, 63, 54, 45, 36, 27, 18, 9, 80, 72, 64, 56, 48, 40, 32, 24, 16, 8, 70, 63, 56, 49, 42, 35, 28, 21, 14, 7, 60, 54, 48, 42, 36, 30, 24, 18, 12, 6, 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 40, 36, 32, 28, 24, 20, 16, 12, 8]

cp's OEIS Frontend

A298372 a(n), in decimal base, is the number of numbers k >= 0 with no more digits than n such that k + n can be computed without carry.

Table of values

List of values

n	a(n)
0	1
1	9
2	8
3	7
4	6
5	5
6	4
7	3
8	2
9	1
10	90
11	81
12	72
13	63
14	54
15	45
16	36
17	27
18	18
19	9
20	80
21	72
22	64
23	56
24	48
25	40
26	32
27	24
28	16
29	8
30	70
31	63
32	56
33	49
34	42
35	35
36	28
37	21
38	14
39	7
40	60
41	54
42	48
43	42
44	36
45	30
46	24
47	18
48	12
49	6
50	50
51	45
52	40
53	35
54	30
55	25
56	20
57	15
58	10
59	5
60	40
61	36
62	32
63	28
64	24
65	20
66	16
67	12
68	8

n	a(n)
0	1
1	9
2	8
3	7
4	6
5	5
6	4
7	3
8	2
9	1
10	90
11	81
12	72
13	63
14	54
15	45
16	36
17	27
18	18
19	9
20	80
21	72
22	64
23	56
24	48
25	40
26	32
27	24
28	16
29	8
30	70
31	63
32	56
33	49
34	42
35	35
36	28
37	21
38	14
39	7
40	60
41	54
42	48
43	42
44	36
45	30
46	24
47	18
48	12
49	6
50	50
51	45
52	40
53	35
54	30
55	25
56	20
57	15
58	10
59	5
60	40
61	36
62	32
63	28
64	24
65	20
66	16
67	12
68	8

n	a(n)
0	1
1	9
2	8
3	7
4	6
5	5
6	4
7	3
8	2
9	1
10	90
11	81
12	72
13	63
14	54
15	45
16	36
17	27
18	18
19	9
20	80
21	72
22	64
23	56
24	48
25	40
26	32
27	24
28	16
29	8
30	70
31	63
32	56
33	49
34	42
35	35
36	28
37	21
38	14
39	7
40	60
41	54
42	48
43	42
44	36
45	30
46	24
47	18
48	12
49	6
50	50
51	45
52	40
53	35
54	30
55	25
56	20
57	15
58	10
59	5
60	40
61	36
62	32
63	28
64	24
65	20
66	16
67	12
68	8