A229875 - cp's OEIS frontend

A229875 Iterated sum-of-digits of palindromic prime; or digital root of palindromic prime.

n	a(n)
1	2
2	3
3	5
4	7
5	2
6	2
7	5
8	7
9	1
10	2
11	7
12	2
13	4
14	5
15	7
16	1
17	4
18	5
19	1
20	2
21	5
22	7
23	8
24	7
25	8
26	1
27	4
28	5
29	2
30	7
31	8
32	4
33	8
34	7
35	8
36	5
37	8
38	1
39	2
40	2
41	7
42	1
43	4
44	5
45	1
46	2
47	7
48	8
49	1
50	4
51	5
52	8
53	4
54	4
55	5
56	8
57	1
58	4
59	7
60	8
61	1
62	5
63	2
64	5
65	4
66	7
67	4
68	5
69	2
70	8
71	7
72	1
73	2
74	1
75	7
76	2
77	7
78	2
79	4
80	8
81	4
82	2
83	2
84	2
85	5
86	4

[2, 3, 5, 7, 2, 2, 5, 7, 1, 2, 7, 2, 4, 5, 7, 1, 4, 5, 1, 2, 5, 7, 8, 7, 8, 1, 4, 5, 2, 7, 8, 4, 8, 7, 8, 5, 8, 1, 2, 2, 7, 1, 4, 5, 1, 2, 7, 8, 1, 4, 5, 8, 4, 4, 5, 8, 1, 4, 7, 8, 1, 5, 2, 5, 4, 7, 4, 5, 2, 8, 7, 1, 2, 1, 7, 2, 7, 2, 4, 8, 4, 2, 2, 2, 5, 4]

cp's OEIS Frontend

A229875 Iterated sum-of-digits of palindromic prime; or digital root of palindromic prime.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	7
5	2
6	2
7	5
8	7
9	1
10	2
11	7
12	2
13	4
14	5
15	7
16	1
17	4
18	5
19	1
20	2
21	5
22	7
23	8
24	7
25	8
26	1
27	4
28	5
29	2
30	7
31	8
32	4
33	8
34	7
35	8
36	5
37	8
38	1
39	2
40	2
41	7
42	1
43	4
44	5
45	1
46	2
47	7
48	8
49	1
50	4
51	5
52	8
53	4
54	4
55	5
56	8
57	1
58	4
59	7
60	8
61	1
62	5
63	2
64	5
65	4
66	7
67	4
68	5
69	2
70	8
71	7
72	1
73	2
74	1
75	7
76	2
77	7
78	2
79	4
80	8
81	4
82	2
83	2
84	2
85	5
86	4

n	a(n)
1	2
2	3
3	5
4	7
5	2
6	2
7	5
8	7
9	1
10	2
11	7
12	2
13	4
14	5
15	7
16	1
17	4
18	5
19	1
20	2
21	5
22	7
23	8
24	7
25	8
26	1
27	4
28	5
29	2
30	7
31	8
32	4
33	8
34	7
35	8
36	5
37	8
38	1
39	2
40	2
41	7
42	1
43	4
44	5
45	1
46	2
47	7
48	8
49	1
50	4
51	5
52	8
53	4
54	4
55	5
56	8
57	1
58	4
59	7
60	8
61	1
62	5
63	2
64	5
65	4
66	7
67	4
68	5
69	2
70	8
71	7
72	1
73	2
74	1
75	7
76	2
77	7
78	2
79	4
80	8
81	4
82	2
83	2
84	2
85	5
86	4

n	a(n)
1	2
2	3
3	5
4	7
5	2
6	2
7	5
8	7
9	1
10	2
11	7
12	2
13	4
14	5
15	7
16	1
17	4
18	5
19	1
20	2
21	5
22	7
23	8
24	7
25	8
26	1
27	4
28	5
29	2
30	7
31	8
32	4
33	8
34	7
35	8
36	5
37	8
38	1
39	2
40	2
41	7
42	1
43	4
44	5
45	1
46	2
47	7
48	8
49	1
50	4
51	5
52	8
53	4
54	4
55	5
56	8
57	1
58	4
59	7
60	8
61	1
62	5
63	2
64	5
65	4
66	7
67	4
68	5
69	2
70	8
71	7
72	1
73	2
74	1
75	7
76	2
77	7
78	2
79	4
80	8
81	4
82	2
83	2
84	2
85	5
86	4