A242313 - cp's OEIS frontend

A242313 Numbers belonging to a geometric sequence whose ratio is 2 and whose first term ends in 1.

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	16
7	21
8	22
9	31
10	32
11	41
12	42
13	44
14	51
15	61
16	62
17	64
18	71
19	81
20	82
21	84
22	88
23	91
24	101
25	102
26	111
27	121
28	122
29	124
30	128
31	131
32	141
33	142
34	151
35	161
36	162
37	164
38	168
39	171
40	176
41	181
42	182
43	191
44	201
45	202
46	204
47	211
48	221
49	222
50	231
51	241
52	242
53	244
54	248
55	251
56	256
57	261

[1, 2, 4, 8, 11, 16, 21, 22, 31, 32, 41, 42, 44, 51, 61, 62, 64, 71, 81, 82, 84, 88, 91, 101, 102, 111, 121, 122, 124, 128, 131, 141, 142, 151, 161, 162, 164, 168, 171, 176, 181, 182, 191, 201, 202, 204, 211, 221, 222, 231, 241, 242, 244, 248, 251, 256, 261]

cp's OEIS Frontend

A242313 Numbers belonging to a geometric sequence whose ratio is 2 and whose first term ends in 1.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	16
7	21
8	22
9	31
10	32
11	41
12	42
13	44
14	51
15	61
16	62
17	64
18	71
19	81
20	82
21	84
22	88
23	91
24	101
25	102
26	111
27	121
28	122
29	124
30	128
31	131
32	141
33	142
34	151
35	161
36	162
37	164
38	168
39	171
40	176
41	181
42	182
43	191
44	201
45	202
46	204
47	211
48	221
49	222
50	231
51	241
52	242
53	244
54	248
55	251
56	256
57	261

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	16
7	21
8	22
9	31
10	32
11	41
12	42
13	44
14	51
15	61
16	62
17	64
18	71
19	81
20	82
21	84
22	88
23	91
24	101
25	102
26	111
27	121
28	122
29	124
30	128
31	131
32	141
33	142
34	151
35	161
36	162
37	164
38	168
39	171
40	176
41	181
42	182
43	191
44	201
45	202
46	204
47	211
48	221
49	222
50	231
51	241
52	242
53	244
54	248
55	251
56	256
57	261

n	a(n)
1	1
2	2
3	4
4	8
5	11
6	16
7	21
8	22
9	31
10	32
11	41
12	42
13	44
14	51
15	61
16	62
17	64
18	71
19	81
20	82
21	84
22	88
23	91
24	101
25	102
26	111
27	121
28	122
29	124
30	128
31	131
32	141
33	142
34	151
35	161
36	162
37	164
38	168
39	171
40	176
41	181
42	182
43	191
44	201
45	202
46	204
47	211
48	221
49	222
50	231
51	241
52	242
53	244
54	248
55	251
56	256
57	261