A192649 - cp's OEIS frontend

A192649 Monotonic ordering of set S generated by these rules: if x and y are in S and x^2-y^2>0 then x^2-y^2 is in S, and 1, 2, and 4 are in S.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	12
10	15
11	16
12	17
13	21
14	24
15	31
16	32
17	33
18	39
19	40
20	45
21	48
22	55
23	56
24	60
25	63
26	64
27	65
28	72
29	77
30	79
31	80
32	81
33	95
34	111
35	112
36	119
37	127
38	128
39	129
40	135
41	140
42	143
43	144
44	145
45	152
46	159
47	161
48	175
49	176
50	185
51	192
52	200
53	207
54	208
55	209
56	216
57	221
58	223
59	224
60	225
61	231

[1, 2, 3, 4, 5, 7, 8, 9, 12, 15, 16, 17, 21, 24, 31, 32, 33, 39, 40, 45, 48, 55, 56, 60, 63, 64, 65, 72, 77, 79, 80, 81, 95, 111, 112, 119, 127, 128, 129, 135, 140, 143, 144, 145, 152, 159, 161, 175, 176, 185, 192, 200, 207, 208, 209, 216, 221, 223, 224, 225, 231]

cp's OEIS Frontend

A192649 Monotonic ordering of set S generated by these rules: if x and y are in S and x^2-y^2>0 then x^2-y^2 is in S, and 1, 2, and 4 are in S.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	12
10	15
11	16
12	17
13	21
14	24
15	31
16	32
17	33
18	39
19	40
20	45
21	48
22	55
23	56
24	60
25	63
26	64
27	65
28	72
29	77
30	79
31	80
32	81
33	95
34	111
35	112
36	119
37	127
38	128
39	129
40	135
41	140
42	143
43	144
44	145
45	152
46	159
47	161
48	175
49	176
50	185
51	192
52	200
53	207
54	208
55	209
56	216
57	221
58	223
59	224
60	225
61	231

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	12
10	15
11	16
12	17
13	21
14	24
15	31
16	32
17	33
18	39
19	40
20	45
21	48
22	55
23	56
24	60
25	63
26	64
27	65
28	72
29	77
30	79
31	80
32	81
33	95
34	111
35	112
36	119
37	127
38	128
39	129
40	135
41	140
42	143
43	144
44	145
45	152
46	159
47	161
48	175
49	176
50	185
51	192
52	200
53	207
54	208
55	209
56	216
57	221
58	223
59	224
60	225
61	231

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	12
10	15
11	16
12	17
13	21
14	24
15	31
16	32
17	33
18	39
19	40
20	45
21	48
22	55
23	56
24	60
25	63
26	64
27	65
28	72
29	77
30	79
31	80
32	81
33	95
34	111
35	112
36	119
37	127
38	128
39	129
40	135
41	140
42	143
43	144
44	145
45	152
46	159
47	161
48	175
49	176
50	185
51	192
52	200
53	207
54	208
55	209
56	216
57	221
58	223
59	224
60	225
61	231