A336206 - cp's OEIS frontend

A336206 Lexicographically earliest sequence of nonnegative terms such that whenever a(k_1) = ... = a(k_m) with k_1 < ... < k_m, the sum k_1 + ... + k_m can be computed without carries in base 10.

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

[0, 0, 0, 1, 1, 2, 3, 4, 5, 0, 0, 0, 2, 6, 6, 7, 8, 9, 10, 0, 3, 7, 11, 11, 12, 13, 14, 15, 16, 0, 3, 8, 12, 17, 17, 18, 19, 20, 21, 1, 4, 11, 13, 22, 22, 23, 24, 25, 26, 1, 7, 14, 18, 27, 28, 29, 30, 31, 32, 2, 9, 19, 33, 34, 35, 36, 37, 38, 39, 5, 15, 40, 41]

cp's OEIS Frontend

A336206 Lexicographically earliest sequence of nonnegative terms such that whenever a(k_1) = ... = a(k_m) with k_1 < ... < k_m, the sum k_1 + ... + k_m can be computed without carries in base 10.

Table of values

List of values

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

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

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