A239446 - cp's OEIS frontend

A239446 Triangle read by rows: T(n,k), n>=1, k>=1, in which column k lists the elements of A004273 interleaved with k zeros, and the first element of column k is in row k*(k+1)/2.

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

[0, 0, 1, 0, 0, 0, 3, 0, 0, 1, 0, 5, 0, 0, 0, 0, 0, 7, 3, 0, 0, 0, 1, 0, 9, 0, 0, 0, 0, 5, 0, 0, 11, 0, 0, 0, 0, 0, 3, 0, 13, 7, 0, 1, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 9, 5, 0, 0, 17, 0, 0, 0, 0, 0, 0, 0, 3, 0, 19, 11, 0, 0, 1, 0, 0, 0, 7, 0, 0, 0, 21, 0]

cp's OEIS Frontend

A239446 Triangle read by rows: T(n,k), n>=1, k>=1, in which column k lists the elements of A004273 interleaved with k zeros, and the first element of column k is in row k*(k+1)/2.

Table of values

List of values

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

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

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