A228894 - cp's OEIS frontend

A228894 Nodes of tree generated as follows: (2,1) is an edge, and if (x,y) is an edge, then (y,y+x) and (y,2y+x) are edges.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	22
17	23
18	24
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	35
27	37
28	40
29	41
30	43
31	44
32	47
33	48
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	60
42	61
43	63
44	64
45	65
46	67
47	68
48	69
49	71
50	75
51	76
52	78
53	79
54	80
55	83
56	84
57	85
58	87
59	88
60	89
61	91
62	92
63	93
64	97
65	98
66	99

[1, 2, 3, 4, 5, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19, 22, 23, 24, 25, 26, 27, 29, 31, 32, 33, 35, 37, 40, 41, 43, 44, 47, 48, 51, 52, 53, 55, 56, 57, 58, 60, 61, 63, 64, 65, 67, 68, 69, 71, 75, 76, 78, 79, 80, 83, 84, 85, 87, 88, 89, 91, 92, 93, 97, 98, 99]

cp's OEIS Frontend

A228894 Nodes of tree generated as follows: (2,1) is an edge, and if (x,y) is an edge, then (y,y+x) and (y,2y+x) are edges.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	22
17	23
18	24
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	35
27	37
28	40
29	41
30	43
31	44
32	47
33	48
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	60
42	61
43	63
44	64
45	65
46	67
47	68
48	69
49	71
50	75
51	76
52	78
53	79
54	80
55	83
56	84
57	85
58	87
59	88
60	89
61	91
62	92
63	93
64	97
65	98
66	99

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	22
17	23
18	24
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	35
27	37
28	40
29	41
30	43
31	44
32	47
33	48
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	60
42	61
43	63
44	64
45	65
46	67
47	68
48	69
49	71
50	75
51	76
52	78
53	79
54	80
55	83
56	84
57	85
58	87
59	88
60	89
61	91
62	92
63	93
64	97
65	98
66	99

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	22
17	23
18	24
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	35
27	37
28	40
29	41
30	43
31	44
32	47
33	48
34	51
35	52
36	53
37	55
38	56
39	57
40	58
41	60
42	61
43	63
44	64
45	65
46	67
47	68
48	69
49	71
50	75
51	76
52	78
53	79
54	80
55	83
56	84
57	85
58	87
59	88
60	89
61	91
62	92
63	93
64	97
65	98
66	99