A196020 - cp's OEIS frontend

A196020 Irregular triangle read by rows: T(n,k), n >= 1, k >= 1, in which column k lists the odd numbers interleaved with k-1 zeros, and the first element of column k is in row k(k+1)/2.

n	a(n)
1	1
2	3
3	5
4	1
5	7
6	0
7	9
8	3
9	11
10	0
11	1
12	13
13	5
14	0
15	15
16	0
17	0
18	17
19	7
20	3
21	19
22	0
23	0
24	1
25	21
26	9
27	0
28	0
29	23
30	0
31	5
32	0
33	25
34	11
35	0
36	0
37	27
38	0
39	0
40	3
41	29
42	13
43	7
44	0
45	1
46	31
47	0
48	0
49	0
50	0
51	33
52	15
53	0
54	0
55	0
56	35
57	0
58	9
59	5
60	0
61	37
62	17
63	0
64	0
65	0
66	39
67	0
68	0
69	0
70	3
71	41
72	19
73	11
74	0
75	0
76	1
77	43
78	0
79	0
80	7
81	0
82	0
83	45
84	21
85	0
86	0
87	0
88	0
89	47
90	0
91	13
92	0
93	0
94	0

[1, 3, 5, 1, 7, 0, 9, 3, 11, 0, 1, 13, 5, 0, 15, 0, 0, 17, 7, 3, 19, 0, 0, 1, 21, 9, 0, 0, 23, 0, 5, 0, 25, 11, 0, 0, 27, 0, 0, 3, 29, 13, 7, 0, 1, 31, 0, 0, 0, 0, 33, 15, 0, 0, 0, 35, 0, 9, 5, 0, 37, 17, 0, 0, 0, 39, 0, 0, 0, 3, 41, 19, 11, 0, 0, 1, 43, 0, 0, 7, 0, 0, 45, 21, 0, 0, 0, 0, 47, 0, 13, 0, 0, 0]

cp's OEIS Frontend

A196020 Irregular triangle read by rows: T(n,k), n >= 1, k >= 1, in which column k lists the odd numbers interleaved with k-1 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	1
2	3
3	5
4	1
5	7
6	0
7	9
8	3
9	11
10	0
11	1
12	13
13	5
14	0
15	15
16	0
17	0
18	17
19	7
20	3
21	19
22	0
23	0
24	1
25	21
26	9
27	0
28	0
29	23
30	0
31	5
32	0
33	25
34	11
35	0
36	0
37	27
38	0
39	0
40	3
41	29
42	13
43	7
44	0
45	1
46	31
47	0
48	0
49	0
50	0
51	33
52	15
53	0
54	0
55	0
56	35
57	0
58	9
59	5
60	0
61	37
62	17
63	0
64	0
65	0
66	39
67	0
68	0
69	0
70	3
71	41
72	19
73	11
74	0
75	0
76	1
77	43
78	0
79	0
80	7
81	0
82	0
83	45
84	21
85	0
86	0
87	0
88	0
89	47
90	0
91	13
92	0
93	0
94	0

n	a(n)
1	1
2	3
3	5
4	1
5	7
6	0
7	9
8	3
9	11
10	0
11	1
12	13
13	5
14	0
15	15
16	0
17	0
18	17
19	7
20	3
21	19
22	0
23	0
24	1
25	21
26	9
27	0
28	0
29	23
30	0
31	5
32	0
33	25
34	11
35	0
36	0
37	27
38	0
39	0
40	3
41	29
42	13
43	7
44	0
45	1
46	31
47	0
48	0
49	0
50	0
51	33
52	15
53	0
54	0
55	0
56	35
57	0
58	9
59	5
60	0
61	37
62	17
63	0
64	0
65	0
66	39
67	0
68	0
69	0
70	3
71	41
72	19
73	11
74	0
75	0
76	1
77	43
78	0
79	0
80	7
81	0
82	0
83	45
84	21
85	0
86	0
87	0
88	0
89	47
90	0
91	13
92	0
93	0
94	0

n	a(n)
1	1
2	3
3	5
4	1
5	7
6	0
7	9
8	3
9	11
10	0
11	1
12	13
13	5
14	0
15	15
16	0
17	0
18	17
19	7
20	3
21	19
22	0
23	0
24	1
25	21
26	9
27	0
28	0
29	23
30	0
31	5
32	0
33	25
34	11
35	0
36	0
37	27
38	0
39	0
40	3
41	29
42	13
43	7
44	0
45	1
46	31
47	0
48	0
49	0
50	0
51	33
52	15
53	0
54	0
55	0
56	35
57	0
58	9
59	5
60	0
61	37
62	17
63	0
64	0
65	0
66	39
67	0
68	0
69	0
70	3
71	41
72	19
73	11
74	0
75	0
76	1
77	43
78	0
79	0
80	7
81	0
82	0
83	45
84	21
85	0
86	0
87	0
88	0
89	47
90	0
91	13
92	0
93	0
94	0