A157483 - cp's OEIS frontend

A157483 Numbers k such that k-1 and k+1 are divisible by exactly 3 primes, counted with multiplicity.

n	a(n)
1	19
2	29
3	43
4	51
5	67
6	69
7	77
8	115
9	171
10	173
11	187
12	189
13	237
14	243
15	245
16	267
17	274
18	283
19	285
20	291
21	317
22	344
23	355
24	386
25	403
26	405
27	411
28	424
29	427
30	429
31	435
32	437
33	476
34	507
35	597
36	603
37	604
38	605
39	638
40	653
41	664
42	669
43	723
44	763
45	776
46	787
47	789
48	846
49	891
50	893
51	907
52	926
53	963

[19, 29, 43, 51, 67, 69, 77, 115, 171, 173, 187, 189, 237, 243, 245, 267, 274, 283, 285, 291, 317, 344, 355, 386, 403, 405, 411, 424, 427, 429, 435, 437, 476, 507, 597, 603, 604, 605, 638, 653, 664, 669, 723, 763, 776, 787, 789, 846, 891, 893, 907, 926, 963]

cp's OEIS Frontend

A157483 Numbers k such that k-1 and k+1 are divisible by exactly 3 primes, counted with multiplicity.

Table of values

List of values

n	a(n)
1	19
2	29
3	43
4	51
5	67
6	69
7	77
8	115
9	171
10	173
11	187
12	189
13	237
14	243
15	245
16	267
17	274
18	283
19	285
20	291
21	317
22	344
23	355
24	386
25	403
26	405
27	411
28	424
29	427
30	429
31	435
32	437
33	476
34	507
35	597
36	603
37	604
38	605
39	638
40	653
41	664
42	669
43	723
44	763
45	776
46	787
47	789
48	846
49	891
50	893
51	907
52	926
53	963

n	a(n)
1	19
2	29
3	43
4	51
5	67
6	69
7	77
8	115
9	171
10	173
11	187
12	189
13	237
14	243
15	245
16	267
17	274
18	283
19	285
20	291
21	317
22	344
23	355
24	386
25	403
26	405
27	411
28	424
29	427
30	429
31	435
32	437
33	476
34	507
35	597
36	603
37	604
38	605
39	638
40	653
41	664
42	669
43	723
44	763
45	776
46	787
47	789
48	846
49	891
50	893
51	907
52	926
53	963

n	a(n)
1	19
2	29
3	43
4	51
5	67
6	69
7	77
8	115
9	171
10	173
11	187
12	189
13	237
14	243
15	245
16	267
17	274
18	283
19	285
20	291
21	317
22	344
23	355
24	386
25	403
26	405
27	411
28	424
29	427
30	429
31	435
32	437
33	476
34	507
35	597
36	603
37	604
38	605
39	638
40	653
41	664
42	669
43	723
44	763
45	776
46	787
47	789
48	846
49	891
50	893
51	907
52	926
53	963