A050701 - cp's OEIS frontend

A050701 If composite k and its reverse are different and have same number of prime factors, then the larger of them is a term of the sequence.

n	a(n)
1	51
2	62
3	85
4	93
5	94
6	221
7	302
8	321
9	341
10	381
11	413
12	442
13	492
14	493
15	502
16	511
17	513
18	514
19	522
20	524
21	533
22	534
23	551
24	553
25	561
26	562
27	574
28	581
29	582
30	604
31	605
32	621
33	622
34	623
35	642
36	663
37	682
38	685
39	705
40	711
41	723
42	734
43	741
44	766
45	771
46	781
47	794
48	805
49	814
50	817

[51, 62, 85, 93, 94, 221, 302, 321, 341, 381, 413, 442, 492, 493, 502, 511, 513, 514, 522, 524, 533, 534, 551, 553, 561, 562, 574, 581, 582, 604, 605, 621, 622, 623, 642, 663, 682, 685, 705, 711, 723, 734, 741, 766, 771, 781, 794, 805, 814, 817]

cp's OEIS Frontend

A050701 If composite k and its reverse are different and have same number of prime factors, then the larger of them is a term of the sequence.

Table of values

List of values

n	a(n)
1	51
2	62
3	85
4	93
5	94
6	221
7	302
8	321
9	341
10	381
11	413
12	442
13	492
14	493
15	502
16	511
17	513
18	514
19	522
20	524
21	533
22	534
23	551
24	553
25	561
26	562
27	574
28	581
29	582
30	604
31	605
32	621
33	622
34	623
35	642
36	663
37	682
38	685
39	705
40	711
41	723
42	734
43	741
44	766
45	771
46	781
47	794
48	805
49	814
50	817

n	a(n)
1	51
2	62
3	85
4	93
5	94
6	221
7	302
8	321
9	341
10	381
11	413
12	442
13	492
14	493
15	502
16	511
17	513
18	514
19	522
20	524
21	533
22	534
23	551
24	553
25	561
26	562
27	574
28	581
29	582
30	604
31	605
32	621
33	622
34	623
35	642
36	663
37	682
38	685
39	705
40	711
41	723
42	734
43	741
44	766
45	771
46	781
47	794
48	805
49	814
50	817

n	a(n)
1	51
2	62
3	85
4	93
5	94
6	221
7	302
8	321
9	341
10	381
11	413
12	442
13	492
14	493
15	502
16	511
17	513
18	514
19	522
20	524
21	533
22	534
23	551
24	553
25	561
26	562
27	574
28	581
29	582
30	604
31	605
32	621
33	622
34	623
35	642
36	663
37	682
38	685
39	705
40	711
41	723
42	734
43	741
44	766
45	771
46	781
47	794
48	805
49	814
50	817