A285914 - cp's OEIS frontend

A285914 Irregular triangle read by rows: T(n,k), n>=1, k>=1, in which column k lists k's 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	1
3	1
4	2
5	1
6	0
7	1
8	2
9	1
10	0
11	3
12	1
13	2
14	0
15	1
16	0
17	0
18	1
19	2
20	3
21	1
22	0
23	0
24	4
25	1
26	2
27	0
28	0
29	1
30	0
31	3
32	0
33	1
34	2
35	0
36	0
37	1
38	0
39	0
40	4
41	1
42	2
43	3
44	0
45	5
46	1
47	0
48	0
49	0
50	0
51	1
52	2
53	0
54	0
55	0
56	1
57	0
58	3
59	4
60	0
61	1
62	2
63	0
64	0
65	0
66	1
67	0
68	0
69	0
70	5
71	1
72	2
73	3
74	0
75	0
76	6
77	1
78	0
79	0
80	4
81	0
82	0
83	1
84	2
85	0
86	0
87	0
88	0
89	1
90	0
91	3
92	0
93	0
94	0
95	1
96	2
97	0
98	0
99	5
100	0
101	1
102	0
103	0
104	4
105	0
106	0
107	1
108	2
109	3
110	0
111	0
112	6

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

cp's OEIS Frontend

A285914 Irregular triangle read by rows: T(n,k), n>=1, k>=1, in which column k lists k's 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	1
3	1
4	2
5	1
6	0
7	1
8	2
9	1
10	0
11	3
12	1
13	2
14	0
15	1
16	0
17	0
18	1
19	2
20	3
21	1
22	0
23	0
24	4
25	1
26	2
27	0
28	0
29	1
30	0
31	3
32	0
33	1
34	2
35	0
36	0
37	1
38	0
39	0
40	4
41	1
42	2
43	3
44	0
45	5
46	1
47	0
48	0
49	0
50	0
51	1
52	2
53	0
54	0
55	0
56	1
57	0
58	3
59	4
60	0
61	1
62	2
63	0
64	0
65	0
66	1
67	0
68	0
69	0
70	5
71	1
72	2
73	3
74	0
75	0
76	6
77	1
78	0
79	0
80	4
81	0
82	0
83	1
84	2
85	0
86	0
87	0
88	0
89	1
90	0
91	3
92	0
93	0
94	0
95	1
96	2
97	0
98	0
99	5
100	0
101	1
102	0
103	0
104	4
105	0
106	0
107	1
108	2
109	3
110	0
111	0
112	6

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	0
7	1
8	2
9	1
10	0
11	3
12	1
13	2
14	0
15	1
16	0
17	0
18	1
19	2
20	3
21	1
22	0
23	0
24	4
25	1
26	2
27	0
28	0
29	1
30	0
31	3
32	0
33	1
34	2
35	0
36	0
37	1
38	0
39	0
40	4
41	1
42	2
43	3
44	0
45	5
46	1
47	0
48	0
49	0
50	0
51	1
52	2
53	0
54	0
55	0
56	1
57	0
58	3
59	4
60	0
61	1
62	2
63	0
64	0
65	0
66	1
67	0
68	0
69	0
70	5
71	1
72	2
73	3
74	0
75	0
76	6
77	1
78	0
79	0
80	4
81	0
82	0
83	1
84	2
85	0
86	0
87	0
88	0
89	1
90	0
91	3
92	0
93	0
94	0
95	1
96	2
97	0
98	0
99	5
100	0
101	1
102	0
103	0
104	4
105	0
106	0
107	1
108	2
109	3
110	0
111	0
112	6

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	0
7	1
8	2
9	1
10	0
11	3
12	1
13	2
14	0
15	1
16	0
17	0
18	1
19	2
20	3
21	1
22	0
23	0
24	4
25	1
26	2
27	0
28	0
29	1
30	0
31	3
32	0
33	1
34	2
35	0
36	0
37	1
38	0
39	0
40	4
41	1
42	2
43	3
44	0
45	5
46	1
47	0
48	0
49	0
50	0
51	1
52	2
53	0
54	0
55	0
56	1
57	0
58	3
59	4
60	0
61	1
62	2
63	0
64	0
65	0
66	1
67	0
68	0
69	0
70	5
71	1
72	2
73	3
74	0
75	0
76	6
77	1
78	0
79	0
80	4
81	0
82	0
83	1
84	2
85	0
86	0
87	0
88	0
89	1
90	0
91	3
92	0
93	0
94	0
95	1
96	2
97	0
98	0
99	5
100	0
101	1
102	0
103	0
104	4
105	0
106	0
107	1
108	2
109	3
110	0
111	0
112	6