A350604 - cp's OEIS frontend

A350604 Irregular triangle read by rows: row n lists the elements of the set S_n in increasing order, where S_1 = {1}, and S_{n+1} is the union of S_n, 2S_n, and 3S_n.

n	a(n)
1	1
2	1
3	2
4	3
5	1
6	2
7	3
8	4
9	6
10	9
11	1
12	2
13	3
14	4
15	6
16	8
17	9
18	12
19	18
20	27
21	1
22	2
23	3
24	4
25	6
26	8
27	9
28	12
29	16
30	18
31	24
32	27
33	36
34	54
35	81
36	1
37	2
38	3
39	4
40	6
41	8
42	9
43	12
44	16
45	18
46	24
47	27
48	32
49	36
50	48
51	54
52	72
53	81
54	108
55	162
56	243
57	1
58	2
59	3
60	4
61	6
62	8
63	9
64	12
65	16
66	18
67	24
68	27
69	32
70	36
71	48
72	54
73	64
74	72
75	81
76	96
77	108
78	144
79	162
80	216
81	243
82	324
83	486
84	729

[1, 1, 2, 3, 1, 2, 3, 4, 6, 9, 1, 2, 3, 4, 6, 8, 9, 12, 18, 27, 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 54, 81, 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 108, 162, 243, 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 144, 162, 216, 243, 324, 486, 729]

cp's OEIS Frontend

A350604 Irregular triangle read by rows: row n lists the elements of the set S_n in increasing order, where S_1 = {1}, and S_{n+1} is the union of S_n, 2S_n, and 3S_n.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	3
5	1
6	2
7	3
8	4
9	6
10	9
11	1
12	2
13	3
14	4
15	6
16	8
17	9
18	12
19	18
20	27
21	1
22	2
23	3
24	4
25	6
26	8
27	9
28	12
29	16
30	18
31	24
32	27
33	36
34	54
35	81
36	1
37	2
38	3
39	4
40	6
41	8
42	9
43	12
44	16
45	18
46	24
47	27
48	32
49	36
50	48
51	54
52	72
53	81
54	108
55	162
56	243
57	1
58	2
59	3
60	4
61	6
62	8
63	9
64	12
65	16
66	18
67	24
68	27
69	32
70	36
71	48
72	54
73	64
74	72
75	81
76	96
77	108
78	144
79	162
80	216
81	243
82	324
83	486
84	729

n	a(n)
1	1
2	1
3	2
4	3
5	1
6	2
7	3
8	4
9	6
10	9
11	1
12	2
13	3
14	4
15	6
16	8
17	9
18	12
19	18
20	27
21	1
22	2
23	3
24	4
25	6
26	8
27	9
28	12
29	16
30	18
31	24
32	27
33	36
34	54
35	81
36	1
37	2
38	3
39	4
40	6
41	8
42	9
43	12
44	16
45	18
46	24
47	27
48	32
49	36
50	48
51	54
52	72
53	81
54	108
55	162
56	243
57	1
58	2
59	3
60	4
61	6
62	8
63	9
64	12
65	16
66	18
67	24
68	27
69	32
70	36
71	48
72	54
73	64
74	72
75	81
76	96
77	108
78	144
79	162
80	216
81	243
82	324
83	486
84	729

cp's OEIS Frontend

A350604 Irregular triangle read by rows: row n lists the elements of the set S_n in increasing order, where S_1 = {1}, and S_{n+1} is the union of S_n, 2*S_n, and 3*S_n.

Table of values

List of values

A350604 Irregular triangle read by rows: row n lists the elements of the set S_n in increasing order, where S_1 = {1}, and S_{n+1} is the union of S_n, 2S_n, and 3S_n.

n	a(n)
1	1
2	1
3	2
4	3
5	1
6	2
7	3
8	4
9	6
10	9
11	1
12	2
13	3
14	4
15	6
16	8
17	9
18	12
19	18
20	27
21	1
22	2
23	3
24	4
25	6
26	8
27	9
28	12
29	16
30	18
31	24
32	27
33	36
34	54
35	81
36	1
37	2
38	3
39	4
40	6
41	8
42	9
43	12
44	16
45	18
46	24
47	27
48	32
49	36
50	48
51	54
52	72
53	81
54	108
55	162
56	243
57	1
58	2
59	3
60	4
61	6
62	8
63	9
64	12
65	16
66	18
67	24
68	27
69	32
70	36
71	48
72	54
73	64
74	72
75	81
76	96
77	108
78	144
79	162
80	216
81	243
82	324
83	486
84	729