A168261 - cp's OEIS frontend

A168261 Triangle read by rows, A115361 * the diagonalized variant of A018819.

n	a(n)
1	1
2	1
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	0
12	0
13	0
14	0
15	4
16	0
17	0
18	2
19	0
20	0
21	4
22	0
23	0
24	0
25	0
26	0
27	0
28	6
29	1
30	1
31	0
32	2
33	0
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	10
46	0
47	0
48	0
49	0
50	4
51	0
52	0
53	0
54	0
55	10
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	14
67	0
68	0
69	2
70	0
71	0
72	4
73	0
74	0
75	0
76	0
77	0
78	14
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	20

[1, 1, 1, 0, 0, 2, 1, 1, 0, 2, 0, 0, 0, 0, 4, 0, 0, 2, 0, 0, 4, 0, 0, 0, 0, 0, 0, 6, 1, 1, 0, 2, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 4, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 0, 2, 0, 0, 4, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 20]

cp's OEIS Frontend

A168261 Triangle read by rows, A115361 * the diagonalized variant of A018819.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	0
12	0
13	0
14	0
15	4
16	0
17	0
18	2
19	0
20	0
21	4
22	0
23	0
24	0
25	0
26	0
27	0
28	6
29	1
30	1
31	0
32	2
33	0
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	10
46	0
47	0
48	0
49	0
50	4
51	0
52	0
53	0
54	0
55	10
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	14
67	0
68	0
69	2
70	0
71	0
72	4
73	0
74	0
75	0
76	0
77	0
78	14
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	20

n	a(n)
1	1
2	1
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	0
12	0
13	0
14	0
15	4
16	0
17	0
18	2
19	0
20	0
21	4
22	0
23	0
24	0
25	0
26	0
27	0
28	6
29	1
30	1
31	0
32	2
33	0
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	10
46	0
47	0
48	0
49	0
50	4
51	0
52	0
53	0
54	0
55	10
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	14
67	0
68	0
69	2
70	0
71	0
72	4
73	0
74	0
75	0
76	0
77	0
78	14
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	20

n	a(n)
1	1
2	1
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	0
12	0
13	0
14	0
15	4
16	0
17	0
18	2
19	0
20	0
21	4
22	0
23	0
24	0
25	0
26	0
27	0
28	6
29	1
30	1
31	0
32	2
33	0
34	0
35	0
36	6
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	10
46	0
47	0
48	0
49	0
50	4
51	0
52	0
53	0
54	0
55	10
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	14
67	0
68	0
69	2
70	0
71	0
72	4
73	0
74	0
75	0
76	0
77	0
78	14
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	20