A133418 - cp's OEIS frontend

A133418 Let l(n) = number of letters in n, A005589(n). If l(n) = 4 set a(n) = 0; otherwise a(n) = a(l(n)) + 1.

n	a(n)
0	0
1	2
2	2
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	3
12	3
13	2
14	2
15	2
16	2
17	1
18	2
19	2
20	3
21	1
22	1
23	4
24	3
25	3
26	1
27	4
28	4
29	3
30	3
31	1
32	1
33	4
34	3
35	3
36	1
37	4
38	4
39	3
40	1
41	2
42	2
43	3
44	1
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	3
54	1
55	1
56	2
57	3
58	3
59	1
60	1
61	2
62	2
63	3
64	1
65	1
66	2
67	3
68	3
69	1
70	2
71	3
72	3
73	4
74	4
75	4
76	3
77	4
78	4
79	4
80	3
81	1
82	1
83	4
84	3
85	3
86	1
87	4
88	4
89	3
90	3
91	1
92	1
93	4
94	3
95	3
96	1
97	4
98	4
99	3
100	4
101	3
102	3
103	3
104	3

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

cp's OEIS Frontend

A133418 Let l(n) = number of letters in n, A005589(n). If l(n) = 4 set a(n) = 0; otherwise a(n) = a(l(n)) + 1.

Table of values

List of values

n	a(n)
0	0
1	2
2	2
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	3
12	3
13	2
14	2
15	2
16	2
17	1
18	2
19	2
20	3
21	1
22	1
23	4
24	3
25	3
26	1
27	4
28	4
29	3
30	3
31	1
32	1
33	4
34	3
35	3
36	1
37	4
38	4
39	3
40	1
41	2
42	2
43	3
44	1
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	3
54	1
55	1
56	2
57	3
58	3
59	1
60	1
61	2
62	2
63	3
64	1
65	1
66	2
67	3
68	3
69	1
70	2
71	3
72	3
73	4
74	4
75	4
76	3
77	4
78	4
79	4
80	3
81	1
82	1
83	4
84	3
85	3
86	1
87	4
88	4
89	3
90	3
91	1
92	1
93	4
94	3
95	3
96	1
97	4
98	4
99	3
100	4
101	3
102	3
103	3
104	3

n	a(n)
0	0
1	2
2	2
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	3
12	3
13	2
14	2
15	2
16	2
17	1
18	2
19	2
20	3
21	1
22	1
23	4
24	3
25	3
26	1
27	4
28	4
29	3
30	3
31	1
32	1
33	4
34	3
35	3
36	1
37	4
38	4
39	3
40	1
41	2
42	2
43	3
44	1
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	3
54	1
55	1
56	2
57	3
58	3
59	1
60	1
61	2
62	2
63	3
64	1
65	1
66	2
67	3
68	3
69	1
70	2
71	3
72	3
73	4
74	4
75	4
76	3
77	4
78	4
79	4
80	3
81	1
82	1
83	4
84	3
85	3
86	1
87	4
88	4
89	3
90	3
91	1
92	1
93	4
94	3
95	3
96	1
97	4
98	4
99	3
100	4
101	3
102	3
103	3
104	3

n	a(n)
0	0
1	2
2	2
3	1
4	0
5	0
6	2
7	1
8	1
9	0
10	2
11	3
12	3
13	2
14	2
15	2
16	2
17	1
18	2
19	2
20	3
21	1
22	1
23	4
24	3
25	3
26	1
27	4
28	4
29	3
30	3
31	1
32	1
33	4
34	3
35	3
36	1
37	4
38	4
39	3
40	1
41	2
42	2
43	3
44	1
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	3
54	1
55	1
56	2
57	3
58	3
59	1
60	1
61	2
62	2
63	3
64	1
65	1
66	2
67	3
68	3
69	1
70	2
71	3
72	3
73	4
74	4
75	4
76	3
77	4
78	4
79	4
80	3
81	1
82	1
83	4
84	3
85	3
86	1
87	4
88	4
89	3
90	3
91	1
92	1
93	4
94	3
95	3
96	1
97	4
98	4
99	3
100	4
101	3
102	3
103	3
104	3