A322511 - cp's OEIS frontend

A322511 Nonnegative numbers whose digits can be formed by typing adjacent keys on a 123-456-789 keypad without repeating a digit and without changing direction.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	14
12	21
13	23
14	25
15	32
16	36
17	41
18	45
19	47
20	52
21	54
22	56
23	58
24	63
25	65
26	69
27	74
28	78
29	85
30	87
31	89
32	96
33	98
34	123
35	147
36	258
37	321
38	369
39	456
40	654
41	741
42	789
43	852
44	963
45	987

[1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 21, 23, 25, 32, 36, 41, 45, 47, 52, 54, 56, 58, 63, 65, 69, 74, 78, 85, 87, 89, 96, 98, 123, 147, 258, 321, 369, 456, 654, 741, 789, 852, 963, 987]

cp's OEIS Frontend

A322511 Nonnegative numbers whose digits can be formed by typing adjacent keys on a 123-456-789 keypad without repeating a digit and without changing direction.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	14
12	21
13	23
14	25
15	32
16	36
17	41
18	45
19	47
20	52
21	54
22	56
23	58
24	63
25	65
26	69
27	74
28	78
29	85
30	87
31	89
32	96
33	98
34	123
35	147
36	258
37	321
38	369
39	456
40	654
41	741
42	789
43	852
44	963
45	987

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	14
12	21
13	23
14	25
15	32
16	36
17	41
18	45
19	47
20	52
21	54
22	56
23	58
24	63
25	65
26	69
27	74
28	78
29	85
30	87
31	89
32	96
33	98
34	123
35	147
36	258
37	321
38	369
39	456
40	654
41	741
42	789
43	852
44	963
45	987

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	14
12	21
13	23
14	25
15	32
16	36
17	41
18	45
19	47
20	52
21	54
22	56
23	58
24	63
25	65
26	69
27	74
28	78
29	85
30	87
31	89
32	96
33	98
34	123
35	147
36	258
37	321
38	369
39	456
40	654
41	741
42	789
43	852
44	963
45	987