A368400 - cp's OEIS frontend

A368400 Irregular triangle read by rows: T(n,k) is the position of k within the Christmas tree pattern (A367562) of order n, with n >= 1 and k >= 0.

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

[1, 2, 2, 3, 1, 4, 5, 6, 3, 7, 1, 2, 4, 8, 12, 13, 9, 14, 6, 7, 10, 15, 2, 3, 1, 4, 5, 8, 11, 16, 27, 28, 23, 29, 19, 20, 24, 30, 13, 14, 11, 15, 17, 21, 25, 31, 5, 6, 3, 7, 1, 2, 4, 8, 9, 10, 12, 16, 18, 22, 26, 32, 58, 59, 53, 60, 48, 49, 54, 61, 40, 41, 37, 42, 45]

cp's OEIS Frontend

A368400 Irregular triangle read by rows: T(n,k) is the position of k within the Christmas tree pattern (A367562) of order n, with n >= 1 and k >= 0.

Table of values

List of values

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

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

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