A338920 - cp's OEIS frontend

A338920 a(n) is the number of times it takes to iteratively subtract m from n where m is the largest nonzero proper suffix of n less than or equal to the remainder until no further subtraction is possible.

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

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 6, 4, 3, 3, 2, 2, 2, 2, 0, 21, 11, 7, 6, 5, 4, 3, 3, 3, 0, 31, 16, 11, 8, 7, 6, 5, 4, 4, 0, 41, 21, 14, 11, 9, 7, 6, 6, 5, 0, 51, 26, 17, 13, 11, 9, 8, 7, 6, 0, 61, 31, 21, 16, 13, 11, 9, 8, 7, 0, 71, 36, 24, 18, 15, 12, 11, 9]

cp's OEIS Frontend

A338920 a(n) is the number of times it takes to iteratively subtract m from n where m is the largest nonzero proper suffix of n less than or equal to the remainder until no further subtraction is possible.

Table of values

List of values

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

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

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