A369609 - cp's OEIS frontend

A369609 Irregular triangle read by rows where row n lists k <= n such that A007947(k) = A007947(n).

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

[1, 2, 3, 2, 4, 5, 6, 7, 2, 4, 8, 3, 9, 10, 11, 6, 12, 13, 14, 15, 2, 4, 8, 16, 17, 6, 12, 18, 19, 10, 20, 21, 22, 23, 6, 12, 18, 24, 5, 25, 26, 3, 9, 27, 14, 28, 29, 30, 31, 2, 4, 8, 16, 32, 33, 34, 35, 6, 12, 18, 24, 36, 37, 38, 39, 10, 20, 40, 41, 42, 43, 22, 44]

cp's OEIS Frontend

A369609 Irregular triangle read by rows where row n lists k <= n such that A007947(k) = A007947(n).

Table of values

List of values

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

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

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