A109937 - cp's OEIS frontend

A109937 Number of consecutive composite numbers in successive consecutive number sets in A109936; (smallest (n+1)-digit prime) - (largest n-digit prime) - 1.

n	a(n)
1	3
2	3
3	11
4	33
5	11
6	19
7	27
8	17
9	69
10	51
11	25
12	49
13	65
14	57
15	47
16	123
17	5
18	13
19	89
20	49
21	217
22	35
23	139
24	263
25	135
26	207
27	201
28	539
29	345
30	67
31	59
32	69
33	69
34	603
35	91
36	225
37	123
38	191
39	59
40	137
41	227
42	145
43	137
44	83
45	17
46	153
47	73
48	225
49	65
50	207
51	443
52	557
53	347
54	321
55	131
56	595
57	371
58	307
59	159
60	167

[3, 3, 11, 33, 11, 19, 27, 17, 69, 51, 25, 49, 65, 57, 47, 123, 5, 13, 89, 49, 217, 35, 139, 263, 135, 207, 201, 539, 345, 67, 59, 69, 69, 603, 91, 225, 123, 191, 59, 137, 227, 145, 137, 83, 17, 153, 73, 225, 65, 207, 443, 557, 347, 321, 131, 595, 371, 307, 159, 167]

cp's OEIS Frontend

A109937 Number of consecutive composite numbers in successive consecutive number sets in A109936; (smallest (n+1)-digit prime) - (largest n-digit prime) - 1.

Table of values

List of values

n	a(n)
1	3
2	3
3	11
4	33
5	11
6	19
7	27
8	17
9	69
10	51
11	25
12	49
13	65
14	57
15	47
16	123
17	5
18	13
19	89
20	49
21	217
22	35
23	139
24	263
25	135
26	207
27	201
28	539
29	345
30	67
31	59
32	69
33	69
34	603
35	91
36	225
37	123
38	191
39	59
40	137
41	227
42	145
43	137
44	83
45	17
46	153
47	73
48	225
49	65
50	207
51	443
52	557
53	347
54	321
55	131
56	595
57	371
58	307
59	159
60	167

n	a(n)
1	3
2	3
3	11
4	33
5	11
6	19
7	27
8	17
9	69
10	51
11	25
12	49
13	65
14	57
15	47
16	123
17	5
18	13
19	89
20	49
21	217
22	35
23	139
24	263
25	135
26	207
27	201
28	539
29	345
30	67
31	59
32	69
33	69
34	603
35	91
36	225
37	123
38	191
39	59
40	137
41	227
42	145
43	137
44	83
45	17
46	153
47	73
48	225
49	65
50	207
51	443
52	557
53	347
54	321
55	131
56	595
57	371
58	307
59	159
60	167

n	a(n)
1	3
2	3
3	11
4	33
5	11
6	19
7	27
8	17
9	69
10	51
11	25
12	49
13	65
14	57
15	47
16	123
17	5
18	13
19	89
20	49
21	217
22	35
23	139
24	263
25	135
26	207
27	201
28	539
29	345
30	67
31	59
32	69
33	69
34	603
35	91
36	225
37	123
38	191
39	59
40	137
41	227
42	145
43	137
44	83
45	17
46	153
47	73
48	225
49	65
50	207
51	443
52	557
53	347
54	321
55	131
56	595
57	371
58	307
59	159
60	167