A360019 - cp's OEIS frontend

A360019 Lexicographically earliest increasing sequence of positive numbers in which no nonempty subsequence of consecutive terms sums to a triangular number.

n	a(n)
0	2
1	5
2	7
3	11
4	12
5	14
6	16
7	17
8	18
9	19
10	20
11	22
12	25
13	26
14	30
15	31
16	34
17	35
18	37
19	42
20	46
21	49
22	52
23	54
24	59
25	63
26	64
27	68
28	72
29	73
30	77
31	80
32	81
33	84
34	85
35	87
36	92
37	93
38	94
39	98
40	100
41	101
42	108
43	113
44	115
45	117
46	118
47	121
48	122
49	123
50	125
51	129
52	130
53	132
54	133
55	134
56	141
57	142
58	143
59	146
60	149

[2, 5, 7, 11, 12, 14, 16, 17, 18, 19, 20, 22, 25, 26, 30, 31, 34, 35, 37, 42, 46, 49, 52, 54, 59, 63, 64, 68, 72, 73, 77, 80, 81, 84, 85, 87, 92, 93, 94, 98, 100, 101, 108, 113, 115, 117, 118, 121, 122, 123, 125, 129, 130, 132, 133, 134, 141, 142, 143, 146, 149]

cp's OEIS Frontend

A360019 Lexicographically earliest increasing sequence of positive numbers in which no nonempty subsequence of consecutive terms sums to a triangular number.

Table of values

List of values

n	a(n)
0	2
1	5
2	7
3	11
4	12
5	14
6	16
7	17
8	18
9	19
10	20
11	22
12	25
13	26
14	30
15	31
16	34
17	35
18	37
19	42
20	46
21	49
22	52
23	54
24	59
25	63
26	64
27	68
28	72
29	73
30	77
31	80
32	81
33	84
34	85
35	87
36	92
37	93
38	94
39	98
40	100
41	101
42	108
43	113
44	115
45	117
46	118
47	121
48	122
49	123
50	125
51	129
52	130
53	132
54	133
55	134
56	141
57	142
58	143
59	146
60	149

n	a(n)
0	2
1	5
2	7
3	11
4	12
5	14
6	16
7	17
8	18
9	19
10	20
11	22
12	25
13	26
14	30
15	31
16	34
17	35
18	37
19	42
20	46
21	49
22	52
23	54
24	59
25	63
26	64
27	68
28	72
29	73
30	77
31	80
32	81
33	84
34	85
35	87
36	92
37	93
38	94
39	98
40	100
41	101
42	108
43	113
44	115
45	117
46	118
47	121
48	122
49	123
50	125
51	129
52	130
53	132
54	133
55	134
56	141
57	142
58	143
59	146
60	149

n	a(n)
0	2
1	5
2	7
3	11
4	12
5	14
6	16
7	17
8	18
9	19
10	20
11	22
12	25
13	26
14	30
15	31
16	34
17	35
18	37
19	42
20	46
21	49
22	52
23	54
24	59
25	63
26	64
27	68
28	72
29	73
30	77
31	80
32	81
33	84
34	85
35	87
36	92
37	93
38	94
39	98
40	100
41	101
42	108
43	113
44	115
45	117
46	118
47	121
48	122
49	123
50	125
51	129
52	130
53	132
54	133
55	134
56	141
57	142
58	143
59	146
60	149