A253177 - cp's OEIS frontend

A253177 Numbers which can be expressed with fewer 1s using +, -, and * than with + and *.

n	a(n)
1	23
2	47
3	53
4	59
5	69
6	71
7	89
8	94
9	106
10	107
11	134
12	141
13	142
14	143
15	159
16	161
17	167
18	177
19	178
20	179
21	188
22	191
23	207
24	212
25	213
26	214
27	215
28	227
29	233
30	239
31	242
32	251
33	263
34	265
35	267
36	268
37	269
38	282
39	283
40	284
41	286
42	287
43	299
44	311
45	317
46	318
47	319
48	321

[23, 47, 53, 59, 69, 71, 89, 94, 106, 107, 134, 141, 142, 143, 159, 161, 167, 177, 178, 179, 188, 191, 207, 212, 213, 214, 215, 227, 233, 239, 242, 251, 263, 265, 267, 268, 269, 282, 283, 284, 286, 287, 299, 311, 317, 318, 319, 321]

cp's OEIS Frontend

A253177 Numbers which can be expressed with fewer 1s using +, -, and * than with + and *.

Table of values

List of values

n	a(n)
1	23
2	47
3	53
4	59
5	69
6	71
7	89
8	94
9	106
10	107
11	134
12	141
13	142
14	143
15	159
16	161
17	167
18	177
19	178
20	179
21	188
22	191
23	207
24	212
25	213
26	214
27	215
28	227
29	233
30	239
31	242
32	251
33	263
34	265
35	267
36	268
37	269
38	282
39	283
40	284
41	286
42	287
43	299
44	311
45	317
46	318
47	319
48	321

n	a(n)
1	23
2	47
3	53
4	59
5	69
6	71
7	89
8	94
9	106
10	107
11	134
12	141
13	142
14	143
15	159
16	161
17	167
18	177
19	178
20	179
21	188
22	191
23	207
24	212
25	213
26	214
27	215
28	227
29	233
30	239
31	242
32	251
33	263
34	265
35	267
36	268
37	269
38	282
39	283
40	284
41	286
42	287
43	299
44	311
45	317
46	318
47	319
48	321

n	a(n)
1	23
2	47
3	53
4	59
5	69
6	71
7	89
8	94
9	106
10	107
11	134
12	141
13	142
14	143
15	159
16	161
17	167
18	177
19	178
20	179
21	188
22	191
23	207
24	212
25	213
26	214
27	215
28	227
29	233
30	239
31	242
32	251
33	263
34	265
35	267
36	268
37	269
38	282
39	283
40	284
41	286
42	287
43	299
44	311
45	317
46	318
47	319
48	321