A374252 - cp's OEIS frontend

A374252 Irregular triangle read by rows where T(n,k) is the number of permutations of the prime factors of n with k runs.

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

[1, 1, 1, 0, 1, 0, 2, 1, 1, 0, 0, 1, 0, 0, 2, 1, 0, 2, 1, 1, 0, 2, 0, 2, 1, 0, 0, 0, 1, 0, 2, 1, 1, 0, 2, 1, 0, 2, 0, 2, 1, 0, 2, 2, 0, 1, 0, 0, 2, 1, 0, 0, 0, 2, 1, 1, 0, 0, 6, 1, 1, 0, 0, 0, 0, 0, 2, 0, 2, 0, 2, 0, 2, 2, 2, 1, 0, 2, 0, 2, 0, 2, 2, 0, 1]

cp's OEIS Frontend

A374252 Irregular triangle read by rows where T(n,k) is the number of permutations of the prime factors of n with k runs.

Table of values

List of values

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

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

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