A335301 - cp's OEIS frontend

A335301 a(n) = prime(n+1) mod (10^k) where k is the least positive integer such that floor(prime(n)/(10^k)) = floor(prime(n+1)/(10^k)) and prime(n) denotes the n-th prime number.

n	a(n)
1	3
2	5
3	7
4	11
5	3
6	7
7	9
8	23
9	9
10	31
11	7
12	41
13	3
14	7
15	53
16	9
17	61
18	7
19	71
20	3
21	9
22	83
23	9
24	97
25	101
26	3
27	7
28	9
29	13
30	27
31	31
32	7
33	9
34	49
35	51
36	7
37	63
38	7
39	73
40	9
41	81
42	91
43	3
44	7
45	9
46	211
47	23
48	7
49	9
50	33
51	9
52	41
53	51
54	7
55	63
56	9
57	71
58	7
59	81
60	3
61	93
62	307
63	11
64	3
65	7
66	31
67	7
68	47
69	9
70	53
71	9
72	67
73	73
74	9

[3, 5, 7, 11, 3, 7, 9, 23, 9, 31, 7, 41, 3, 7, 53, 9, 61, 7, 71, 3, 9, 83, 9, 97, 101, 3, 7, 9, 13, 27, 31, 7, 9, 49, 51, 7, 63, 7, 73, 9, 81, 91, 3, 7, 9, 211, 23, 7, 9, 33, 9, 41, 51, 7, 63, 9, 71, 7, 81, 3, 93, 307, 11, 3, 7, 31, 7, 47, 9, 53, 9, 67, 73, 9]

cp's OEIS Frontend

A335301 a(n) = prime(n+1) mod (10^k) where k is the least positive integer such that floor(prime(n)/(10^k)) = floor(prime(n+1)/(10^k)) and prime(n) denotes the n-th prime number.

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	11
5	3
6	7
7	9
8	23
9	9
10	31
11	7
12	41
13	3
14	7
15	53
16	9
17	61
18	7
19	71
20	3
21	9
22	83
23	9
24	97
25	101
26	3
27	7
28	9
29	13
30	27
31	31
32	7
33	9
34	49
35	51
36	7
37	63
38	7
39	73
40	9
41	81
42	91
43	3
44	7
45	9
46	211
47	23
48	7
49	9
50	33
51	9
52	41
53	51
54	7
55	63
56	9
57	71
58	7
59	81
60	3
61	93
62	307
63	11
64	3
65	7
66	31
67	7
68	47
69	9
70	53
71	9
72	67
73	73
74	9

n	a(n)
1	3
2	5
3	7
4	11
5	3
6	7
7	9
8	23
9	9
10	31
11	7
12	41
13	3
14	7
15	53
16	9
17	61
18	7
19	71
20	3
21	9
22	83
23	9
24	97
25	101
26	3
27	7
28	9
29	13
30	27
31	31
32	7
33	9
34	49
35	51
36	7
37	63
38	7
39	73
40	9
41	81
42	91
43	3
44	7
45	9
46	211
47	23
48	7
49	9
50	33
51	9
52	41
53	51
54	7
55	63
56	9
57	71
58	7
59	81
60	3
61	93
62	307
63	11
64	3
65	7
66	31
67	7
68	47
69	9
70	53
71	9
72	67
73	73
74	9

n	a(n)
1	3
2	5
3	7
4	11
5	3
6	7
7	9
8	23
9	9
10	31
11	7
12	41
13	3
14	7
15	53
16	9
17	61
18	7
19	71
20	3
21	9
22	83
23	9
24	97
25	101
26	3
27	7
28	9
29	13
30	27
31	31
32	7
33	9
34	49
35	51
36	7
37	63
38	7
39	73
40	9
41	81
42	91
43	3
44	7
45	9
46	211
47	23
48	7
49	9
50	33
51	9
52	41
53	51
54	7
55	63
56	9
57	71
58	7
59	81
60	3
61	93
62	307
63	11
64	3
65	7
66	31
67	7
68	47
69	9
70	53
71	9
72	67
73	73
74	9