A141748 - cp's OEIS frontend

A141748 a(n) = n-th nonnegative integer k such that there is a unique nonnegative integer pair (i,j) for which n = 2^i + 3^j.

n	a(n)
1	2
2	3
3	4
4	7
5	9
6	10
7	13
8	19
9	25
10	28
11	29
12	31
13	33
14	41
15	43
16	59
17	65
18	67
19	73
20	82
21	83
22	85
23	89
24	91
25	97
26	113
27	129
28	131
29	137
30	145
31	155
32	209
33	244
34	245
35	247
36	251
37	257
38	265
39	275
40	283
41	307
42	337
43	371
44	499
45	513
46	515
47	521
48	539
49	593
50	730
51	731
52	733
53	737
54	745
55	755
56	761
57	793
58	857
59	985

[2, 3, 4, 7, 9, 10, 13, 19, 25, 28, 29, 31, 33, 41, 43, 59, 65, 67, 73, 82, 83, 85, 89, 91, 97, 113, 129, 131, 137, 145, 155, 209, 244, 245, 247, 251, 257, 265, 275, 283, 307, 337, 371, 499, 513, 515, 521, 539, 593, 730, 731, 733, 737, 745, 755, 761, 793, 857, 985]

cp's OEIS Frontend

A141748 a(n) = n-th nonnegative integer k such that there is a unique nonnegative integer pair (i,j) for which n = 2^i + 3^j.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	7
5	9
6	10
7	13
8	19
9	25
10	28
11	29
12	31
13	33
14	41
15	43
16	59
17	65
18	67
19	73
20	82
21	83
22	85
23	89
24	91
25	97
26	113
27	129
28	131
29	137
30	145
31	155
32	209
33	244
34	245
35	247
36	251
37	257
38	265
39	275
40	283
41	307
42	337
43	371
44	499
45	513
46	515
47	521
48	539
49	593
50	730
51	731
52	733
53	737
54	745
55	755
56	761
57	793
58	857
59	985

n	a(n)
1	2
2	3
3	4
4	7
5	9
6	10
7	13
8	19
9	25
10	28
11	29
12	31
13	33
14	41
15	43
16	59
17	65
18	67
19	73
20	82
21	83
22	85
23	89
24	91
25	97
26	113
27	129
28	131
29	137
30	145
31	155
32	209
33	244
34	245
35	247
36	251
37	257
38	265
39	275
40	283
41	307
42	337
43	371
44	499
45	513
46	515
47	521
48	539
49	593
50	730
51	731
52	733
53	737
54	745
55	755
56	761
57	793
58	857
59	985

n	a(n)
1	2
2	3
3	4
4	7
5	9
6	10
7	13
8	19
9	25
10	28
11	29
12	31
13	33
14	41
15	43
16	59
17	65
18	67
19	73
20	82
21	83
22	85
23	89
24	91
25	97
26	113
27	129
28	131
29	137
30	145
31	155
32	209
33	244
34	245
35	247
36	251
37	257
38	265
39	275
40	283
41	307
42	337
43	371
44	499
45	513
46	515
47	521
48	539
49	593
50	730
51	731
52	733
53	737
54	745
55	755
56	761
57	793
58	857
59	985