A093520 - cp's OEIS frontend

A093520 Numbers n such that there exists no k with 0 < k < n for which n!/k + 1 is a prime.

n	a(n)
1	1
2	18
3	51
4	53
5	84
6	95
7	100
8	104
9	106
10	143
11	178
12	180
13	181
14	188
15	202
16	203
17	211
18	214
19	217
20	222
21	227
22	232
23	237
24	239
25	244
26	250
27	258
28	272
29	281
30	284
31	300
32	303
33	313
34	315
35	317
36	323
37	326
38	342
39	358
40	364
41	370
42	374
43	386
44	387
45	396
46	401
47	409
48	413
49	422
50	423
51	429
52	438
53	440

[1, 18, 51, 53, 84, 95, 100, 104, 106, 143, 178, 180, 181, 188, 202, 203, 211, 214, 217, 222, 227, 232, 237, 239, 244, 250, 258, 272, 281, 284, 300, 303, 313, 315, 317, 323, 326, 342, 358, 364, 370, 374, 386, 387, 396, 401, 409, 413, 422, 423, 429, 438, 440]

cp's OEIS Frontend

A093520 Numbers n such that there exists no k with 0 < k < n for which n!/k + 1 is a prime.

Table of values

List of values

n	a(n)
1	1
2	18
3	51
4	53
5	84
6	95
7	100
8	104
9	106
10	143
11	178
12	180
13	181
14	188
15	202
16	203
17	211
18	214
19	217
20	222
21	227
22	232
23	237
24	239
25	244
26	250
27	258
28	272
29	281
30	284
31	300
32	303
33	313
34	315
35	317
36	323
37	326
38	342
39	358
40	364
41	370
42	374
43	386
44	387
45	396
46	401
47	409
48	413
49	422
50	423
51	429
52	438
53	440

n	a(n)
1	1
2	18
3	51
4	53
5	84
6	95
7	100
8	104
9	106
10	143
11	178
12	180
13	181
14	188
15	202
16	203
17	211
18	214
19	217
20	222
21	227
22	232
23	237
24	239
25	244
26	250
27	258
28	272
29	281
30	284
31	300
32	303
33	313
34	315
35	317
36	323
37	326
38	342
39	358
40	364
41	370
42	374
43	386
44	387
45	396
46	401
47	409
48	413
49	422
50	423
51	429
52	438
53	440

n	a(n)
1	1
2	18
3	51
4	53
5	84
6	95
7	100
8	104
9	106
10	143
11	178
12	180
13	181
14	188
15	202
16	203
17	211
18	214
19	217
20	222
21	227
22	232
23	237
24	239
25	244
26	250
27	258
28	272
29	281
30	284
31	300
32	303
33	313
34	315
35	317
36	323
37	326
38	342
39	358
40	364
41	370
42	374
43	386
44	387
45	396
46	401
47	409
48	413
49	422
50	423
51	429
52	438
53	440