A350605 - cp's OEIS frontend

A350605 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 set {k, 2k+1, 3k+1: k in S_n}.

n	a(n)
1	1
2	1
3	3
4	4
5	1
6	3
7	4
8	7
9	9
10	10
11	13
12	1
13	3
14	4
15	7
16	9
17	10
18	13
19	15
20	19
21	21
22	22
23	27
24	28
25	31
26	40
27	1
28	3
29	4
30	7
31	9
32	10
33	13
34	15
35	19
36	21
37	22
38	27
39	28
40	31
41	39
42	40
43	43
44	45
45	46
46	55
47	57
48	58
49	63
50	64
51	67
52	81
53	82
54	85
55	94
56	121
57	1
58	3
59	4
60	7
61	9
62	10
63	13
64	15
65	19
66	21
67	22
68	27
69	28
70	31
71	39
72	40
73	43
74	45
75	46
76	55
77	57
78	58
79	63
80	64
81	67
82	79
83	81
84	82
85	85
86	87
87	91
88	93
89	94
90	111
91	115
92	117
93	118
94	121
95	127
96	129
97	130
98	135
99	136
100	139
101	163
102	165
103	166
104	171
105	172
106	175
107	189
108	190
109	193
110	202
111	243
112	244
113	247
114	256
115	283
116	364

[1, 1, 3, 4, 1, 3, 4, 7, 9, 10, 13, 1, 3, 4, 7, 9, 10, 13, 15, 19, 21, 22, 27, 28, 31, 40, 1, 3, 4, 7, 9, 10, 13, 15, 19, 21, 22, 27, 28, 31, 39, 40, 43, 45, 46, 55, 57, 58, 63, 64, 67, 81, 82, 85, 94, 121, 1, 3, 4, 7, 9, 10, 13, 15, 19, 21, 22, 27, 28, 31, 39, 40, 43, 45, 46, 55, 57, 58, 63, 64, 67, 79, 81, 82, 85, 87, 91, 93, 94, 111, 115, 117, 118, 121, 127, 129, 130, 135, 136, 139, 163, 165, 166, 171, 172, 175, 189, 190, 193, 202, 243, 244, 247, 256, 283, 364]

cp's OEIS Frontend

A350605 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 set {k, 2k+1, 3k+1: k in S_n}.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	4
5	1
6	3
7	4
8	7
9	9
10	10
11	13
12	1
13	3
14	4
15	7
16	9
17	10
18	13
19	15
20	19
21	21
22	22
23	27
24	28
25	31
26	40
27	1
28	3
29	4
30	7
31	9
32	10
33	13
34	15
35	19
36	21
37	22
38	27
39	28
40	31
41	39
42	40
43	43
44	45
45	46
46	55
47	57
48	58
49	63
50	64
51	67
52	81
53	82
54	85
55	94
56	121
57	1
58	3
59	4
60	7
61	9
62	10
63	13
64	15
65	19
66	21
67	22
68	27
69	28
70	31
71	39
72	40
73	43
74	45
75	46
76	55
77	57
78	58
79	63
80	64
81	67
82	79
83	81
84	82
85	85
86	87
87	91
88	93
89	94
90	111
91	115
92	117
93	118
94	121
95	127
96	129
97	130
98	135
99	136
100	139
101	163
102	165
103	166
104	171
105	172
106	175
107	189
108	190
109	193
110	202
111	243
112	244
113	247
114	256
115	283
116	364

n	a(n)
1	1
2	1
3	3
4	4
5	1
6	3
7	4
8	7
9	9
10	10
11	13
12	1
13	3
14	4
15	7
16	9
17	10
18	13
19	15
20	19
21	21
22	22
23	27
24	28
25	31
26	40
27	1
28	3
29	4
30	7
31	9
32	10
33	13
34	15
35	19
36	21
37	22
38	27
39	28
40	31
41	39
42	40
43	43
44	45
45	46
46	55
47	57
48	58
49	63
50	64
51	67
52	81
53	82
54	85
55	94
56	121
57	1
58	3
59	4
60	7
61	9
62	10
63	13
64	15
65	19
66	21
67	22
68	27
69	28
70	31
71	39
72	40
73	43
74	45
75	46
76	55
77	57
78	58
79	63
80	64
81	67
82	79
83	81
84	82
85	85
86	87
87	91
88	93
89	94
90	111
91	115
92	117
93	118
94	121
95	127
96	129
97	130
98	135
99	136
100	139
101	163
102	165
103	166
104	171
105	172
106	175
107	189
108	190
109	193
110	202
111	243
112	244
113	247
114	256
115	283
116	364

cp's OEIS Frontend

A350605 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 set {k, 2*k+1, 3*k+1: k in S_n}.

Table of values

List of values

A350605 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 set {k, 2k+1, 3k+1: k in S_n}.

n	a(n)
1	1
2	1
3	3
4	4
5	1
6	3
7	4
8	7
9	9
10	10
11	13
12	1
13	3
14	4
15	7
16	9
17	10
18	13
19	15
20	19
21	21
22	22
23	27
24	28
25	31
26	40
27	1
28	3
29	4
30	7
31	9
32	10
33	13
34	15
35	19
36	21
37	22
38	27
39	28
40	31
41	39
42	40
43	43
44	45
45	46
46	55
47	57
48	58
49	63
50	64
51	67
52	81
53	82
54	85
55	94
56	121
57	1
58	3
59	4
60	7
61	9
62	10
63	13
64	15
65	19
66	21
67	22
68	27
69	28
70	31
71	39
72	40
73	43
74	45
75	46
76	55
77	57
78	58
79	63
80	64
81	67
82	79
83	81
84	82
85	85
86	87
87	91
88	93
89	94
90	111
91	115
92	117
93	118
94	121
95	127
96	129
97	130
98	135
99	136
100	139
101	163
102	165
103	166
104	171
105	172
106	175
107	189
108	190
109	193
110	202
111	243
112	244
113	247
114	256
115	283
116	364