A280647 - cp's OEIS frontend

A280647 Numbers k such that k^3 has an odd number of digits and the middle digit is 7.

n	a(n)
1	31
2	32
3	105
4	111
5	128
6	130
7	149
8	167
9	173
10	191
11	192
12	475
13	483
14	484
15	491
16	509
17	524
18	530
19	534
20	545
21	546
22	550
23	556
24	559
25	584
26	590
27	592
28	597
29	614
30	619
31	624
32	628
33	637
34	641
35	665
36	668
37	692
38	701
39	725
40	743
41	750
42	760
43	781
44	793
45	809
46	824
47	836
48	837
49	843
50	852
51	861
52	864

[31, 32, 105, 111, 128, 130, 149, 167, 173, 191, 192, 475, 483, 484, 491, 509, 524, 530, 534, 545, 546, 550, 556, 559, 584, 590, 592, 597, 614, 619, 624, 628, 637, 641, 665, 668, 692, 701, 725, 743, 750, 760, 781, 793, 809, 824, 836, 837, 843, 852, 861, 864]

cp's OEIS Frontend

A280647 Numbers k such that k^3 has an odd number of digits and the middle digit is 7.

Table of values

List of values

n	a(n)
1	31
2	32
3	105
4	111
5	128
6	130
7	149
8	167
9	173
10	191
11	192
12	475
13	483
14	484
15	491
16	509
17	524
18	530
19	534
20	545
21	546
22	550
23	556
24	559
25	584
26	590
27	592
28	597
29	614
30	619
31	624
32	628
33	637
34	641
35	665
36	668
37	692
38	701
39	725
40	743
41	750
42	760
43	781
44	793
45	809
46	824
47	836
48	837
49	843
50	852
51	861
52	864

n	a(n)
1	31
2	32
3	105
4	111
5	128
6	130
7	149
8	167
9	173
10	191
11	192
12	475
13	483
14	484
15	491
16	509
17	524
18	530
19	534
20	545
21	546
22	550
23	556
24	559
25	584
26	590
27	592
28	597
29	614
30	619
31	624
32	628
33	637
34	641
35	665
36	668
37	692
38	701
39	725
40	743
41	750
42	760
43	781
44	793
45	809
46	824
47	836
48	837
49	843
50	852
51	861
52	864

n	a(n)
1	31
2	32
3	105
4	111
5	128
6	130
7	149
8	167
9	173
10	191
11	192
12	475
13	483
14	484
15	491
16	509
17	524
18	530
19	534
20	545
21	546
22	550
23	556
24	559
25	584
26	590
27	592
28	597
29	614
30	619
31	624
32	628
33	637
34	641
35	665
36	668
37	692
38	701
39	725
40	743
41	750
42	760
43	781
44	793
45	809
46	824
47	836
48	837
49	843
50	852
51	861
52	864