A228898 - cp's OEIS frontend

A228898 Nodes of tree generated as follows: (1,2) is an edge, and if (x,y) is an edge, then (y,x+y) and (y,x^2 + y^2) are edges.

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	12
8	13
9	16
10	19
11	21
12	29
13	31
14	34
15	39
16	45
17	50
18	55
19	63
20	73
21	74
22	81
23	89
24	97
25	112
26	119
27	131
28	144
29	155
30	160
31	178
32	185
33	186
34	191
35	193
36	205
37	212
38	233
39	236
40	246
41	257
42	283
43	297
44	312
45	343
46	369
47	377
48	391
49	398
50	417
51	425
52	441
53	469
54	479
55	482
56	505
57	524
58	555

[1, 2, 3, 5, 7, 8, 12, 13, 16, 19, 21, 29, 31, 34, 39, 45, 50, 55, 63, 73, 74, 81, 89, 97, 112, 119, 131, 144, 155, 160, 178, 185, 186, 191, 193, 205, 212, 233, 236, 246, 257, 283, 297, 312, 343, 369, 377, 391, 398, 417, 425, 441, 469, 479, 482, 505, 524, 555]

cp's OEIS Frontend

A228898 Nodes of tree generated as follows: (1,2) is an edge, and if (x,y) is an edge, then (y,x+y) and (y,x^2 + y^2) are edges.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	12
8	13
9	16
10	19
11	21
12	29
13	31
14	34
15	39
16	45
17	50
18	55
19	63
20	73
21	74
22	81
23	89
24	97
25	112
26	119
27	131
28	144
29	155
30	160
31	178
32	185
33	186
34	191
35	193
36	205
37	212
38	233
39	236
40	246
41	257
42	283
43	297
44	312
45	343
46	369
47	377
48	391
49	398
50	417
51	425
52	441
53	469
54	479
55	482
56	505
57	524
58	555

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	12
8	13
9	16
10	19
11	21
12	29
13	31
14	34
15	39
16	45
17	50
18	55
19	63
20	73
21	74
22	81
23	89
24	97
25	112
26	119
27	131
28	144
29	155
30	160
31	178
32	185
33	186
34	191
35	193
36	205
37	212
38	233
39	236
40	246
41	257
42	283
43	297
44	312
45	343
46	369
47	377
48	391
49	398
50	417
51	425
52	441
53	469
54	479
55	482
56	505
57	524
58	555

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	12
8	13
9	16
10	19
11	21
12	29
13	31
14	34
15	39
16	45
17	50
18	55
19	63
20	73
21	74
22	81
23	89
24	97
25	112
26	119
27	131
28	144
29	155
30	160
31	178
32	185
33	186
34	191
35	193
36	205
37	212
38	233
39	236
40	246
41	257
42	283
43	297
44	312
45	343
46	369
47	377
48	391
49	398
50	417
51	425
52	441
53	469
54	479
55	482
56	505
57	524
58	555