A257944 - cp's OEIS frontend

A257944 Lexicographically earliest sequence of positive integers such that the terms and their absolute first differences are all distinct and no term is the sum of two distinct terms.

n	a(n)
1	1
2	3
3	7
4	12
5	18
6	26
7	16
8	31
9	20
10	37
11	50
12	22
13	41
14	64
15	35
16	56
17	83
18	39
19	69
20	45
21	54
22	79
23	111
24	58
25	92
26	130
27	60
28	96
29	136
30	73
31	115
32	163
33	75
34	121
35	168
36	77
37	134
38	193
39	98
40	149
41	182
42	102
43	157
44	206
45	117
46	178
47	244
48	138
49	210
50	277
51	140
52	214
53	282
54	153
55	229
56	307
57	155
58	220
59	263

[1, 3, 7, 12, 18, 26, 16, 31, 20, 37, 50, 22, 41, 64, 35, 56, 83, 39, 69, 45, 54, 79, 111, 58, 92, 130, 60, 96, 136, 73, 115, 163, 75, 121, 168, 77, 134, 193, 98, 149, 182, 102, 157, 206, 117, 178, 244, 138, 210, 277, 140, 214, 282, 153, 229, 307, 155, 220, 263]

cp's OEIS Frontend

A257944 Lexicographically earliest sequence of positive integers such that the terms and their absolute first differences are all distinct and no term is the sum of two distinct terms.

Table of values

List of values

n	a(n)
1	1
2	3
3	7
4	12
5	18
6	26
7	16
8	31
9	20
10	37
11	50
12	22
13	41
14	64
15	35
16	56
17	83
18	39
19	69
20	45
21	54
22	79
23	111
24	58
25	92
26	130
27	60
28	96
29	136
30	73
31	115
32	163
33	75
34	121
35	168
36	77
37	134
38	193
39	98
40	149
41	182
42	102
43	157
44	206
45	117
46	178
47	244
48	138
49	210
50	277
51	140
52	214
53	282
54	153
55	229
56	307
57	155
58	220
59	263

n	a(n)
1	1
2	3
3	7
4	12
5	18
6	26
7	16
8	31
9	20
10	37
11	50
12	22
13	41
14	64
15	35
16	56
17	83
18	39
19	69
20	45
21	54
22	79
23	111
24	58
25	92
26	130
27	60
28	96
29	136
30	73
31	115
32	163
33	75
34	121
35	168
36	77
37	134
38	193
39	98
40	149
41	182
42	102
43	157
44	206
45	117
46	178
47	244
48	138
49	210
50	277
51	140
52	214
53	282
54	153
55	229
56	307
57	155
58	220
59	263

n	a(n)
1	1
2	3
3	7
4	12
5	18
6	26
7	16
8	31
9	20
10	37
11	50
12	22
13	41
14	64
15	35
16	56
17	83
18	39
19	69
20	45
21	54
22	79
23	111
24	58
25	92
26	130
27	60
28	96
29	136
30	73
31	115
32	163
33	75
34	121
35	168
36	77
37	134
38	193
39	98
40	149
41	182
42	102
43	157
44	206
45	117
46	178
47	244
48	138
49	210
50	277
51	140
52	214
53	282
54	153
55	229
56	307
57	155
58	220
59	263