A134193 - cp's OEIS frontend

A134193 a(1) = 1; for n>1, a(n) = the smallest positive integer not occurring among the exponents in the prime-factorization of n.

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	1
9	1
10	2
11	2
12	3
13	2
14	2
15	2
16	1
17	2
18	3
19	2
20	3
21	2
22	2
23	2
24	2
25	1
26	2
27	1
28	3
29	2
30	2
31	2
32	1
33	2
34	2
35	2
36	1
37	2
38	2
39	2
40	2
41	2
42	2
43	2
44	3
45	3
46	2
47	2
48	2
49	1
50	3
51	2
52	3
53	2
54	2
55	2
56	2
57	2
58	2
59	2
60	3
61	2
62	2
63	3
64	1
65	2
66	2
67	2
68	3
69	2
70	2
71	2
72	1
73	2
74	2
75	3
76	3
77	2
78	2
79	2
80	2
81	1
82	2
83	2
84	3
85	2
86	2
87	2
88	2
89	2
90	3
91	2
92	3
93	2
94	2
95	2
96	2
97	2
98	3
99	3
100	1
101	2
102	2
103	2
104	2
105	2
106	2

[1, 2, 2, 1, 2, 2, 2, 1, 1, 2, 2, 3, 2, 2, 2, 1, 2, 3, 2, 3, 2, 2, 2, 2, 1, 2, 1, 3, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 2, 1, 3, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 3, 1, 2, 2, 2, 3, 2, 2, 2, 1, 2, 2, 3, 3, 2, 2, 2, 2, 1, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 3, 2, 2, 2, 2, 2, 3, 3, 1, 2, 2, 2, 2, 2, 2]

cp's OEIS Frontend

A134193 a(1) = 1; for n>1, a(n) = the smallest positive integer not occurring among the exponents in the prime-factorization of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	1
9	1
10	2
11	2
12	3
13	2
14	2
15	2
16	1
17	2
18	3
19	2
20	3
21	2
22	2
23	2
24	2
25	1
26	2
27	1
28	3
29	2
30	2
31	2
32	1
33	2
34	2
35	2
36	1
37	2
38	2
39	2
40	2
41	2
42	2
43	2
44	3
45	3
46	2
47	2
48	2
49	1
50	3
51	2
52	3
53	2
54	2
55	2
56	2
57	2
58	2
59	2
60	3
61	2
62	2
63	3
64	1
65	2
66	2
67	2
68	3
69	2
70	2
71	2
72	1
73	2
74	2
75	3
76	3
77	2
78	2
79	2
80	2
81	1
82	2
83	2
84	3
85	2
86	2
87	2
88	2
89	2
90	3
91	2
92	3
93	2
94	2
95	2
96	2
97	2
98	3
99	3
100	1
101	2
102	2
103	2
104	2
105	2
106	2

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	1
9	1
10	2
11	2
12	3
13	2
14	2
15	2
16	1
17	2
18	3
19	2
20	3
21	2
22	2
23	2
24	2
25	1
26	2
27	1
28	3
29	2
30	2
31	2
32	1
33	2
34	2
35	2
36	1
37	2
38	2
39	2
40	2
41	2
42	2
43	2
44	3
45	3
46	2
47	2
48	2
49	1
50	3
51	2
52	3
53	2
54	2
55	2
56	2
57	2
58	2
59	2
60	3
61	2
62	2
63	3
64	1
65	2
66	2
67	2
68	3
69	2
70	2
71	2
72	1
73	2
74	2
75	3
76	3
77	2
78	2
79	2
80	2
81	1
82	2
83	2
84	3
85	2
86	2
87	2
88	2
89	2
90	3
91	2
92	3
93	2
94	2
95	2
96	2
97	2
98	3
99	3
100	1
101	2
102	2
103	2
104	2
105	2
106	2

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	1
9	1
10	2
11	2
12	3
13	2
14	2
15	2
16	1
17	2
18	3
19	2
20	3
21	2
22	2
23	2
24	2
25	1
26	2
27	1
28	3
29	2
30	2
31	2
32	1
33	2
34	2
35	2
36	1
37	2
38	2
39	2
40	2
41	2
42	2
43	2
44	3
45	3
46	2
47	2
48	2
49	1
50	3
51	2
52	3
53	2
54	2
55	2
56	2
57	2
58	2
59	2
60	3
61	2
62	2
63	3
64	1
65	2
66	2
67	2
68	3
69	2
70	2
71	2
72	1
73	2
74	2
75	3
76	3
77	2
78	2
79	2
80	2
81	1
82	2
83	2
84	3
85	2
86	2
87	2
88	2
89	2
90	3
91	2
92	3
93	2
94	2
95	2
96	2
97	2
98	3
99	3
100	1
101	2
102	2
103	2
104	2
105	2
106	2