A308999 - cp's OEIS frontend

A308999 Irregular triangle T(n,k) read by rows: Lexicographically smallest marks on "perfect rulers" (as defined in A103294) of length n.

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

[0, 0, 1, 0, 1, 2, 0, 1, 3, 0, 1, 2, 4, 0, 1, 2, 5, 0, 1, 4, 6, 0, 1, 2, 3, 7, 0, 1, 2, 5, 8, 0, 1, 2, 6, 9, 0, 1, 2, 3, 6, 10, 0, 1, 2, 3, 7, 11, 0, 1, 2, 3, 8, 12, 0, 1, 2, 6, 10, 13, 0, 1, 2, 3, 4, 9, 14, 0, 1, 2, 3, 4, 10, 15, 0, 1, 2, 3, 8, 12, 16]

cp's OEIS Frontend

A308999 Irregular triangle T(n,k) read by rows: Lexicographically smallest marks on "perfect rulers" (as defined in A103294) of length n.

Table of values

List of values

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

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

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