A031271 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A031271 as a simple table

n	a(n)
1	1
2	4
3	6
4	11
5	12
6	13
7	16
8	21
9	25
10	27
11	37
12	50
13	52
14	53
15	56
16	57
17	69
18	70
19	73
20	76
21	77
22	81
23	82
24	95
25	98
26	102
27	110
28	111
29	116
30	121
31	122
32	123
33	134
34	135
35	136
36	137
37	142
38	149
39	155
40	157
41	159
42	165
43	189
44	192
45	202
46	204
47	215
48	217
49	219
50	222
51	223
52	225

[1,4,6,11,12,13,16,21,25,27,37,50,52,53,56,57,69, 70,73,76,77,81,82,95,98,102,110,111,116,121,122, 123,134,135,136,137,142,149,155,157,159,165,189, 192,202,204,215,217,219,222,223,225]

n	a(n)
1	1
2	4
3	6
4	11
5	12
6	13
7	16
8	21
9	25
10	27
11	37
12	50
13	52
14	53
15	56
16	57
17	69
18	70
19	73
20	76
21	77
22	81
23	82
24	95
25	98
26	102
27	110
28	111
29	116
30	121
31	122
32	123
33	134
34	135
35	136
36	137
37	142
38	149
39	155
40	157
41	159
42	165
43	189
44	192
45	202
46	204
47	215
48	217
49	219
50	222
51	223
52	225

n	a(n)
1	1
2	4
3	6
4	11
5	12
6	13
7	16
8	21
9	25
10	27
11	37
12	50
13	52
14	53
15	56
16	57
17	69
18	70
19	73
20	76
21	77
22	81
23	82
24	95
25	98
26	102
27	110
28	111
29	116
30	121
31	122
32	123
33	134
34	135
35	136
36	137
37	142
38	149
39	155
40	157
41	159
42	165
43	189
44	192
45	202
46	204
47	215
48	217
49	219
50	222
51	223
52	225

n	a(n)
1	1
2	4
3	6
4	11
5	12
6	13
7	16
8	21
9	25
10	27
11	37
12	50
13	52
14	53
15	56
16	57
17	69
18	70
19	73
20	76
21	77
22	81
23	82
24	95
25	98
26	102
27	110
28	111
29	116
30	121
31	122
32	123
33	134
34	135
35	136
36	137
37	142
38	149
39	155
40	157
41	159
42	165
43	189
44	192
45	202
46	204
47	215
48	217
49	219
50	222
51	223
52	225