A385969 - cp's OEIS frontend

A385969 Numbers that can be written as s_1^x_1 + ... + s_t^x_t, with 1 < s_1 < ... < s_t and {s_1,..., s_t} = {x_1,..., x_t} for some t > 0.

n	a(n)
1	4
2	17
3	27
4	31
5	32
6	57
7	59
8	84
9	89
10	100
11	105
12	127
13	145
14	149
15	166
16	177
17	202
18	204
19	245
20	254
21	256
22	260
23	273
24	276
25	283
26	287
27	289
28	313
29	320
30	322
31	340
32	347
33	348
34	356
35	368
36	372
37	377
38	383
39	400
40	422
41	433
42	460
43	465
44	468
45	480
46	532
47	545
48	548
49	568
50	576
51	593
52	603
53	620
54	624
55	628
56	673
57	688
58	700

[4, 17, 27, 31, 32, 57, 59, 84, 89, 100, 105, 127, 145, 149, 166, 177, 202, 204, 245, 254, 256, 260, 273, 276, 283, 287, 289, 313, 320, 322, 340, 347, 348, 356, 368, 372, 377, 383, 400, 422, 433, 460, 465, 468, 480, 532, 545, 548, 568, 576, 593, 603, 620, 624, 628, 673, 688, 700]

cp's OEIS Frontend

A385969 Numbers that can be written as s_1^x_1 + ... + s_t^x_t, with 1 < s_1 < ... < s_t and {s_1,..., s_t} = {x_1,..., x_t} for some t > 0.

Table of values

List of values

n	a(n)
1	4
2	17
3	27
4	31
5	32
6	57
7	59
8	84
9	89
10	100
11	105
12	127
13	145
14	149
15	166
16	177
17	202
18	204
19	245
20	254
21	256
22	260
23	273
24	276
25	283
26	287
27	289
28	313
29	320
30	322
31	340
32	347
33	348
34	356
35	368
36	372
37	377
38	383
39	400
40	422
41	433
42	460
43	465
44	468
45	480
46	532
47	545
48	548
49	568
50	576
51	593
52	603
53	620
54	624
55	628
56	673
57	688
58	700

n	a(n)
1	4
2	17
3	27
4	31
5	32
6	57
7	59
8	84
9	89
10	100
11	105
12	127
13	145
14	149
15	166
16	177
17	202
18	204
19	245
20	254
21	256
22	260
23	273
24	276
25	283
26	287
27	289
28	313
29	320
30	322
31	340
32	347
33	348
34	356
35	368
36	372
37	377
38	383
39	400
40	422
41	433
42	460
43	465
44	468
45	480
46	532
47	545
48	548
49	568
50	576
51	593
52	603
53	620
54	624
55	628
56	673
57	688
58	700

n	a(n)
1	4
2	17
3	27
4	31
5	32
6	57
7	59
8	84
9	89
10	100
11	105
12	127
13	145
14	149
15	166
16	177
17	202
18	204
19	245
20	254
21	256
22	260
23	273
24	276
25	283
26	287
27	289
28	313
29	320
30	322
31	340
32	347
33	348
34	356
35	368
36	372
37	377
38	383
39	400
40	422
41	433
42	460
43	465
44	468
45	480
46	532
47	545
48	548
49	568
50	576
51	593
52	603
53	620
54	624
55	628
56	673
57	688
58	700