A264620 - cp's OEIS frontend

A264620 Triangle read by rows: T(n,k) (0 <= k <= n) = number of principal ideals generated by an element of rank k in the 3-tonal partition monoid on n elements.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	0
11	1
12	2
13	1
14	1
15	0
16	1
17	2
18	2
19	1
20	1
21	1
22	1
23	2
24	3
25	2
26	1
27	1
28	0
29	1
30	2
31	3
32	3
33	2
34	1
35	1
36	0
37	1
38	2
39	3
40	4
41	3
42	2
43	1
44	1
45	1
46	1
47	2
48	4
49	4
50	4
51	3
52	2
53	1
54	1
55	0
56	1
57	2
58	3
59	5
60	5
61	4
62	3
63	2
64	1
65	1
66	0
67	1
68	2
69	3
70	5
71	6
72	5
73	4
74	3
75	2
76	1
77	1
78	1
79	1
80	2
81	4
82	5
83	6
84	7
85	5
86	4
87	3
88	2
89	1
90	1

[1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 2, 1, 1, 0, 1, 2, 2, 1, 1, 1, 1, 2, 3, 2, 1, 1, 0, 1, 2, 3, 3, 2, 1, 1, 0, 1, 2, 3, 4, 3, 2, 1, 1, 1, 1, 2, 4, 4, 4, 3, 2, 1, 1, 0, 1, 2, 3, 5, 5, 4, 3, 2, 1, 1, 0, 1, 2, 3, 5, 6, 5, 4, 3, 2, 1, 1, 1, 1, 2, 4, 5, 6, 7, 5, 4, 3, 2, 1, 1]

cp's OEIS Frontend

A264620 Triangle read by rows: T(n,k) (0 <= k <= n) = number of principal ideals generated by an element of rank k in the 3-tonal partition monoid on n elements.

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	0
11	1
12	2
13	1
14	1
15	0
16	1
17	2
18	2
19	1
20	1
21	1
22	1
23	2
24	3
25	2
26	1
27	1
28	0
29	1
30	2
31	3
32	3
33	2
34	1
35	1
36	0
37	1
38	2
39	3
40	4
41	3
42	2
43	1
44	1
45	1
46	1
47	2
48	4
49	4
50	4
51	3
52	2
53	1
54	1
55	0
56	1
57	2
58	3
59	5
60	5
61	4
62	3
63	2
64	1
65	1
66	0
67	1
68	2
69	3
70	5
71	6
72	5
73	4
74	3
75	2
76	1
77	1
78	1
79	1
80	2
81	4
82	5
83	6
84	7
85	5
86	4
87	3
88	2
89	1
90	1

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	0
11	1
12	2
13	1
14	1
15	0
16	1
17	2
18	2
19	1
20	1
21	1
22	1
23	2
24	3
25	2
26	1
27	1
28	0
29	1
30	2
31	3
32	3
33	2
34	1
35	1
36	0
37	1
38	2
39	3
40	4
41	3
42	2
43	1
44	1
45	1
46	1
47	2
48	4
49	4
50	4
51	3
52	2
53	1
54	1
55	0
56	1
57	2
58	3
59	5
60	5
61	4
62	3
63	2
64	1
65	1
66	0
67	1
68	2
69	3
70	5
71	6
72	5
73	4
74	3
75	2
76	1
77	1
78	1
79	1
80	2
81	4
82	5
83	6
84	7
85	5
86	4
87	3
88	2
89	1
90	1

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	1
7	1
8	1
9	1
10	0
11	1
12	2
13	1
14	1
15	0
16	1
17	2
18	2
19	1
20	1
21	1
22	1
23	2
24	3
25	2
26	1
27	1
28	0
29	1
30	2
31	3
32	3
33	2
34	1
35	1
36	0
37	1
38	2
39	3
40	4
41	3
42	2
43	1
44	1
45	1
46	1
47	2
48	4
49	4
50	4
51	3
52	2
53	1
54	1
55	0
56	1
57	2
58	3
59	5
60	5
61	4
62	3
63	2
64	1
65	1
66	0
67	1
68	2
69	3
70	5
71	6
72	5
73	4
74	3
75	2
76	1
77	1
78	1
79	1
80	2
81	4
82	5
83	6
84	7
85	5
86	4
87	3
88	2
89	1
90	1