A140101 - cp's OEIS frontend

A140101 Start with Y(0)=0, X(1)=1, Y(1)=2. For n > 1, choose least positive integers Y(n) > X(n) such that neither Y(n) nor X(n) appear in {Y(k), 1 <= k < n} or {X(k), 1 <= k < n} and such that Y(n)-X(n) does not appear in {Y(k)-X(k), 1 <= k < n} or {Y(k)+X(k), 1 <= k < n}; sequence gives Y(n) (for X(n) see A140100).

n	a(n)
0	0
1	2
2	5
3	8
4	11
5	13
6	16
7	19
8	22
9	25
10	28
11	31
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	53
20	56
21	59
22	62
23	65
24	68
25	70
26	73
27	76
28	79
29	81
30	84
31	87
32	90
33	93
34	96
35	99
36	101
37	104
38	107
39	110
40	113
41	116
42	118
43	121
44	124
45	127
46	130
47	133
48	136
49	138
50	141
51	144
52	147
53	150
54	153
55	156
56	158
57	161
58	164
59	167
60	170
61	173

[0, 2, 5, 8, 11, 13, 16, 19, 22, 25, 28, 31, 33, 36, 39, 42, 45, 48, 50, 53, 56, 59, 62, 65, 68, 70, 73, 76, 79, 81, 84, 87, 90, 93, 96, 99, 101, 104, 107, 110, 113, 116, 118, 121, 124, 127, 130, 133, 136, 138, 141, 144, 147, 150, 153, 156, 158, 161, 164, 167, 170, 173]

cp's OEIS Frontend

Table of values

List of values

n	a(n)
0	0
1	2
2	5
3	8
4	11
5	13
6	16
7	19
8	22
9	25
10	28
11	31
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	53
20	56
21	59
22	62
23	65
24	68
25	70
26	73
27	76
28	79
29	81
30	84
31	87
32	90
33	93
34	96
35	99
36	101
37	104
38	107
39	110
40	113
41	116
42	118
43	121
44	124
45	127
46	130
47	133
48	136
49	138
50	141
51	144
52	147
53	150
54	153
55	156
56	158
57	161
58	164
59	167
60	170
61	173

n	a(n)
0	0
1	2
2	5
3	8
4	11
5	13
6	16
7	19
8	22
9	25
10	28
11	31
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	53
20	56
21	59
22	62
23	65
24	68
25	70
26	73
27	76
28	79
29	81
30	84
31	87
32	90
33	93
34	96
35	99
36	101
37	104
38	107
39	110
40	113
41	116
42	118
43	121
44	124
45	127
46	130
47	133
48	136
49	138
50	141
51	144
52	147
53	150
54	153
55	156
56	158
57	161
58	164
59	167
60	170
61	173

n	a(n)
0	0
1	2
2	5
3	8
4	11
5	13
6	16
7	19
8	22
9	25
10	28
11	31
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	53
20	56
21	59
22	62
23	65
24	68
25	70
26	73
27	76
28	79
29	81
30	84
31	87
32	90
33	93
34	96
35	99
36	101
37	104
38	107
39	110
40	113
41	116
42	118
43	121
44	124
45	127
46	130
47	133
48	136
49	138
50	141
51	144
52	147
53	150
54	153
55	156
56	158
57	161
58	164
59	167
60	170
61	173