A286013 - cp's OEIS frontend

A286013 Irregular triangle read by rows: T(n,k), n>=1, k>=1, in which column k lists the positive integers starting with k, 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	2
3	3
4	2
5	4
6	0
7	5
8	3
9	6
10	0
11	3
12	7
13	4
14	0
15	8
16	0
17	0
18	9
19	5
20	4
21	10
22	0
23	0
24	4
25	11
26	6
27	0
28	0
29	12
30	0
31	5
32	0
33	13
34	7
35	0
36	0
37	14
38	0
39	0
40	5
41	15
42	8
43	6
44	0
45	5
46	16
47	0
48	0
49	0
50	0
51	17
52	9
53	0
54	0
55	0
56	18
57	0
58	7
59	6
60	0
61	19
62	10
63	0
64	0
65	0
66	20
67	0
68	0
69	0
70	6
71	21
72	11
73	8
74	0
75	0
76	6
77	22
78	0
79	0
80	7
81	0
82	0
83	23
84	12
85	0
86	0
87	0
88	0
89	24
90	0
91	9
92	0
93	0
94	0
95	25
96	13
97	0
98	0
99	7
100	0

[1, 2, 3, 2, 4, 0, 5, 3, 6, 0, 3, 7, 4, 0, 8, 0, 0, 9, 5, 4, 10, 0, 0, 4, 11, 6, 0, 0, 12, 0, 5, 0, 13, 7, 0, 0, 14, 0, 0, 5, 15, 8, 6, 0, 5, 16, 0, 0, 0, 0, 17, 9, 0, 0, 0, 18, 0, 7, 6, 0, 19, 10, 0, 0, 0, 20, 0, 0, 0, 6, 21, 11, 8, 0, 0, 6, 22, 0, 0, 7, 0, 0, 23, 12, 0, 0, 0, 0, 24, 0, 9, 0, 0, 0, 25, 13, 0, 0, 7, 0]

cp's OEIS Frontend

A286013 Irregular triangle read by rows: T(n,k), n>=1, k>=1, in which column k lists the positive integers starting with k, 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	2
3	3
4	2
5	4
6	0
7	5
8	3
9	6
10	0
11	3
12	7
13	4
14	0
15	8
16	0
17	0
18	9
19	5
20	4
21	10
22	0
23	0
24	4
25	11
26	6
27	0
28	0
29	12
30	0
31	5
32	0
33	13
34	7
35	0
36	0
37	14
38	0
39	0
40	5
41	15
42	8
43	6
44	0
45	5
46	16
47	0
48	0
49	0
50	0
51	17
52	9
53	0
54	0
55	0
56	18
57	0
58	7
59	6
60	0
61	19
62	10
63	0
64	0
65	0
66	20
67	0
68	0
69	0
70	6
71	21
72	11
73	8
74	0
75	0
76	6
77	22
78	0
79	0
80	7
81	0
82	0
83	23
84	12
85	0
86	0
87	0
88	0
89	24
90	0
91	9
92	0
93	0
94	0
95	25
96	13
97	0
98	0
99	7
100	0

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

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