A241173 - cp's OEIS frontend

A241173 Start with n; add to it any of its digits; repeat; a(n) = minimal number of steps needed to reach a palindrome.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	0
12	3
13	2
14	3
15	2
16	1
17	4
18	3
19	2
20	1
21	1
22	0
23	3
24	3
25	2
26	3
27	3
28	2
29	4
30	1
31	3
32	3
33	0
34	2
35	2
36	2
37	1
38	3
39	2
40	1
41	2
42	1
43	3
44	0
45	2
46	2
47	3
48	4
49	2
50	1
51	4
52	3
53	2
54	2
55	0
56	4
57	3
58	1
59	3
60	1
61	4
62	3
63	1
64	2
65	2
66	0
67	3
68	4
69	3
70	1
71	3
72	2
73	2
74	4
75	2
76	3
77	0
78	3
79	1
80	1
81	3
82	2
83	3
84	1
85	2
86	2
87	3
88	0
89	5
90	1
91	2
92	1
93	4
94	5
95	2
96	3
97	4
98	5
99	0

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 3, 2, 3, 2, 1, 4, 3, 2, 1, 1, 0, 3, 3, 2, 3, 3, 2, 4, 1, 3, 3, 0, 2, 2, 2, 1, 3, 2, 1, 2, 1, 3, 0, 2, 2, 3, 4, 2, 1, 4, 3, 2, 2, 0, 4, 3, 1, 3, 1, 4, 3, 1, 2, 2, 0, 3, 4, 3, 1, 3, 2, 2, 4, 2, 3, 0, 3, 1, 1, 3, 2, 3, 1, 2, 2, 3, 0, 5, 1, 2, 1, 4, 5, 2, 3, 4, 5, 0]

cp's OEIS Frontend

A241173 Start with n; add to it any of its digits; repeat; a(n) = minimal number of steps needed to reach a palindrome.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	0
12	3
13	2
14	3
15	2
16	1
17	4
18	3
19	2
20	1
21	1
22	0
23	3
24	3
25	2
26	3
27	3
28	2
29	4
30	1
31	3
32	3
33	0
34	2
35	2
36	2
37	1
38	3
39	2
40	1
41	2
42	1
43	3
44	0
45	2
46	2
47	3
48	4
49	2
50	1
51	4
52	3
53	2
54	2
55	0
56	4
57	3
58	1
59	3
60	1
61	4
62	3
63	1
64	2
65	2
66	0
67	3
68	4
69	3
70	1
71	3
72	2
73	2
74	4
75	2
76	3
77	0
78	3
79	1
80	1
81	3
82	2
83	3
84	1
85	2
86	2
87	3
88	0
89	5
90	1
91	2
92	1
93	4
94	5
95	2
96	3
97	4
98	5
99	0

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	0
12	3
13	2
14	3
15	2
16	1
17	4
18	3
19	2
20	1
21	1
22	0
23	3
24	3
25	2
26	3
27	3
28	2
29	4
30	1
31	3
32	3
33	0
34	2
35	2
36	2
37	1
38	3
39	2
40	1
41	2
42	1
43	3
44	0
45	2
46	2
47	3
48	4
49	2
50	1
51	4
52	3
53	2
54	2
55	0
56	4
57	3
58	1
59	3
60	1
61	4
62	3
63	1
64	2
65	2
66	0
67	3
68	4
69	3
70	1
71	3
72	2
73	2
74	4
75	2
76	3
77	0
78	3
79	1
80	1
81	3
82	2
83	3
84	1
85	2
86	2
87	3
88	0
89	5
90	1
91	2
92	1
93	4
94	5
95	2
96	3
97	4
98	5
99	0

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	0
12	3
13	2
14	3
15	2
16	1
17	4
18	3
19	2
20	1
21	1
22	0
23	3
24	3
25	2
26	3
27	3
28	2
29	4
30	1
31	3
32	3
33	0
34	2
35	2
36	2
37	1
38	3
39	2
40	1
41	2
42	1
43	3
44	0
45	2
46	2
47	3
48	4
49	2
50	1
51	4
52	3
53	2
54	2
55	0
56	4
57	3
58	1
59	3
60	1
61	4
62	3
63	1
64	2
65	2
66	0
67	3
68	4
69	3
70	1
71	3
72	2
73	2
74	4
75	2
76	3
77	0
78	3
79	1
80	1
81	3
82	2
83	3
84	1
85	2
86	2
87	3
88	0
89	5
90	1
91	2
92	1
93	4
94	5
95	2
96	3
97	4
98	5
99	0