A338137 - cp's OEIS frontend

A338137 Lexicographically earliest sequence of distinct positive integers such that the nested cube root (a(n) + (a(n-1) + ... + (a(1))^(1/3)...)^(1/3))^(1/3) is an integer.

n	a(n)
1	1
2	7
3	6
4	25
5	5
6	62
7	4
8	123
9	3
10	214
11	2
12	341
13	20
14	24
15	61
16	23
17	122
18	22
19	213
20	21
21	340
22	57
23	60
24	121
25	59
26	212
27	58
28	339
29	118
30	120
31	211
32	119
33	338
34	209
35	210
36	337
37	336
38	505
39	19
40	509
41	56
42	508
43	117
44	507
45	208
46	506
47	335
48	722
49	18
50	726
51	55
52	725
53	116
54	724
55	207
56	723
57	334
58	993
59	17
60	997
61	54
62	996

[1, 7, 6, 25, 5, 62, 4, 123, 3, 214, 2, 341, 20, 24, 61, 23, 122, 22, 213, 21, 340, 57, 60, 121, 59, 212, 58, 339, 118, 120, 211, 119, 338, 209, 210, 337, 336, 505, 19, 509, 56, 508, 117, 507, 208, 506, 335, 722, 18, 726, 55, 725, 116, 724, 207, 723, 334, 993, 17, 997, 54, 996]

cp's OEIS Frontend

A338137 Lexicographically earliest sequence of distinct positive integers such that the nested cube root (a(n) + (a(n-1) + ... + (a(1))^(1/3)...)^(1/3))^(1/3) is an integer.

Table of values

List of values

n	a(n)
1	1
2	7
3	6
4	25
5	5
6	62
7	4
8	123
9	3
10	214
11	2
12	341
13	20
14	24
15	61
16	23
17	122
18	22
19	213
20	21
21	340
22	57
23	60
24	121
25	59
26	212
27	58
28	339
29	118
30	120
31	211
32	119
33	338
34	209
35	210
36	337
37	336
38	505
39	19
40	509
41	56
42	508
43	117
44	507
45	208
46	506
47	335
48	722
49	18
50	726
51	55
52	725
53	116
54	724
55	207
56	723
57	334
58	993
59	17
60	997
61	54
62	996

n	a(n)
1	1
2	7
3	6
4	25
5	5
6	62
7	4
8	123
9	3
10	214
11	2
12	341
13	20
14	24
15	61
16	23
17	122
18	22
19	213
20	21
21	340
22	57
23	60
24	121
25	59
26	212
27	58
28	339
29	118
30	120
31	211
32	119
33	338
34	209
35	210
36	337
37	336
38	505
39	19
40	509
41	56
42	508
43	117
44	507
45	208
46	506
47	335
48	722
49	18
50	726
51	55
52	725
53	116
54	724
55	207
56	723
57	334
58	993
59	17
60	997
61	54
62	996

n	a(n)
1	1
2	7
3	6
4	25
5	5
6	62
7	4
8	123
9	3
10	214
11	2
12	341
13	20
14	24
15	61
16	23
17	122
18	22
19	213
20	21
21	340
22	57
23	60
24	121
25	59
26	212
27	58
28	339
29	118
30	120
31	211
32	119
33	338
34	209
35	210
36	337
37	336
38	505
39	19
40	509
41	56
42	508
43	117
44	507
45	208
46	506
47	335
48	722
49	18
50	726
51	55
52	725
53	116
54	724
55	207
56	723
57	334
58	993
59	17
60	997
61	54
62	996