A235499 - cp's OEIS frontend

A235499 For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k^2. This is k(3).

n	a(n)
0	0
1	1
2	2
3	3
4	9
5	10
6	11
7	12
8	13
9	19
10	20
11	21
12	22
13	23
14	29
15	30
16	31
17	32
18	33
19	39
20	40
21	41
22	42
23	43
24	49
25	50
26	51
27	52
28	53
29	59
30	60
31	61
32	62
33	63
34	69
35	70
36	71
37	72
38	73
39	79
40	80
41	81
42	82
43	83
44	89
45	90
46	91
47	92
48	93
49	99
50	100
51	101
52	102
53	103
54	109
55	110
56	111
57	112
58	113
59	119
60	120
61	121
62	122
63	123
64	129

[0, 1, 2, 3, 9, 10, 11, 12, 13, 19, 20, 21, 22, 23, 29, 30, 31, 32, 33, 39, 40, 41, 42, 43, 49, 50, 51, 52, 53, 59, 60, 61, 62, 63, 69, 70, 71, 72, 73, 79, 80, 81, 82, 83, 89, 90, 91, 92, 93, 99, 100, 101, 102, 103, 109, 110, 111, 112, 113, 119, 120, 121, 122, 123, 129]

cp's OEIS Frontend

A235499 For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k^2. This is k(3).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	9
5	10
6	11
7	12
8	13
9	19
10	20
11	21
12	22
13	23
14	29
15	30
16	31
17	32
18	33
19	39
20	40
21	41
22	42
23	43
24	49
25	50
26	51
27	52
28	53
29	59
30	60
31	61
32	62
33	63
34	69
35	70
36	71
37	72
38	73
39	79
40	80
41	81
42	82
43	83
44	89
45	90
46	91
47	92
48	93
49	99
50	100
51	101
52	102
53	103
54	109
55	110
56	111
57	112
58	113
59	119
60	120
61	121
62	122
63	123
64	129

n	a(n)
0	0
1	1
2	2
3	3
4	9
5	10
6	11
7	12
8	13
9	19
10	20
11	21
12	22
13	23
14	29
15	30
16	31
17	32
18	33
19	39
20	40
21	41
22	42
23	43
24	49
25	50
26	51
27	52
28	53
29	59
30	60
31	61
32	62
33	63
34	69
35	70
36	71
37	72
38	73
39	79
40	80
41	81
42	82
43	83
44	89
45	90
46	91
47	92
48	93
49	99
50	100
51	101
52	102
53	103
54	109
55	110
56	111
57	112
58	113
59	119
60	120
61	121
62	122
63	123
64	129

n	a(n)
0	0
1	1
2	2
3	3
4	9
5	10
6	11
7	12
8	13
9	19
10	20
11	21
12	22
13	23
14	29
15	30
16	31
17	32
18	33
19	39
20	40
21	41
22	42
23	43
24	49
25	50
26	51
27	52
28	53
29	59
30	60
31	61
32	62
33	63
34	69
35	70
36	71
37	72
38	73
39	79
40	80
41	81
42	82
43	83
44	89
45	90
46	91
47	92
48	93
49	99
50	100
51	101
52	102
53	103
54	109
55	110
56	111
57	112
58	113
59	119
60	120
61	121
62	122
63	123
64	129