A380579 - cp's OEIS frontend

A380579 Triangle read by rows in which row n lists n successive integers in descending order starting with the n-th positive integer not divisible by 3, with n >= 1 and 1 <= k <= n.

n	a(n)
1	1
2	2
3	1
4	4
5	3
6	2
7	5
8	4
9	3
10	2
11	7
12	6
13	5
14	4
15	3
16	8
17	7
18	6
19	5
20	4
21	3
22	10
23	9
24	8
25	7
26	6
27	5
28	4
29	11
30	10
31	9
32	8
33	7
34	6
35	5
36	4
37	13
38	12
39	11
40	10
41	9
42	8
43	7
44	6
45	5
46	14
47	13
48	12
49	11
50	10
51	9
52	8
53	7
54	6
55	5
56	16
57	15
58	14
59	13
60	12
61	11
62	10
63	9
64	8
65	7
66	6
67	17
68	16
69	15
70	14
71	13
72	12
73	11
74	10
75	9
76	8
77	7
78	6
79	19
80	18
81	17
82	16
83	15
84	14
85	13
86	12
87	11
88	10
89	9
90	8
91	7

[1, 2, 1, 4, 3, 2, 5, 4, 3, 2, 7, 6, 5, 4, 3, 8, 7, 6, 5, 4, 3, 10, 9, 8, 7, 6, 5, 4, 11, 10, 9, 8, 7, 6, 5, 4, 13, 12, 11, 10, 9, 8, 7, 6, 5, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7]

cp's OEIS Frontend

A380579 Triangle read by rows in which row n lists n successive integers in descending order starting with the n-th positive integer not divisible by 3, with n >= 1 and 1 <= k <= n.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	4
5	3
6	2
7	5
8	4
9	3
10	2
11	7
12	6
13	5
14	4
15	3
16	8
17	7
18	6
19	5
20	4
21	3
22	10
23	9
24	8
25	7
26	6
27	5
28	4
29	11
30	10
31	9
32	8
33	7
34	6
35	5
36	4
37	13
38	12
39	11
40	10
41	9
42	8
43	7
44	6
45	5
46	14
47	13
48	12
49	11
50	10
51	9
52	8
53	7
54	6
55	5
56	16
57	15
58	14
59	13
60	12
61	11
62	10
63	9
64	8
65	7
66	6
67	17
68	16
69	15
70	14
71	13
72	12
73	11
74	10
75	9
76	8
77	7
78	6
79	19
80	18
81	17
82	16
83	15
84	14
85	13
86	12
87	11
88	10
89	9
90	8
91	7

n	a(n)
1	1
2	2
3	1
4	4
5	3
6	2
7	5
8	4
9	3
10	2
11	7
12	6
13	5
14	4
15	3
16	8
17	7
18	6
19	5
20	4
21	3
22	10
23	9
24	8
25	7
26	6
27	5
28	4
29	11
30	10
31	9
32	8
33	7
34	6
35	5
36	4
37	13
38	12
39	11
40	10
41	9
42	8
43	7
44	6
45	5
46	14
47	13
48	12
49	11
50	10
51	9
52	8
53	7
54	6
55	5
56	16
57	15
58	14
59	13
60	12
61	11
62	10
63	9
64	8
65	7
66	6
67	17
68	16
69	15
70	14
71	13
72	12
73	11
74	10
75	9
76	8
77	7
78	6
79	19
80	18
81	17
82	16
83	15
84	14
85	13
86	12
87	11
88	10
89	9
90	8
91	7

n	a(n)
1	1
2	2
3	1
4	4
5	3
6	2
7	5
8	4
9	3
10	2
11	7
12	6
13	5
14	4
15	3
16	8
17	7
18	6
19	5
20	4
21	3
22	10
23	9
24	8
25	7
26	6
27	5
28	4
29	11
30	10
31	9
32	8
33	7
34	6
35	5
36	4
37	13
38	12
39	11
40	10
41	9
42	8
43	7
44	6
45	5
46	14
47	13
48	12
49	11
50	10
51	9
52	8
53	7
54	6
55	5
56	16
57	15
58	14
59	13
60	12
61	11
62	10
63	9
64	8
65	7
66	6
67	17
68	16
69	15
70	14
71	13
72	12
73	11
74	10
75	9
76	8
77	7
78	6
79	19
80	18
81	17
82	16
83	15
84	14
85	13
86	12
87	11
88	10
89	9
90	8
91	7