A160650 - cp's OEIS frontend

A160650 a(n) = A001222(A160649(n)) = A160649(n+1) - A160649(n); where A001222(m) is the sum of prime-factorization exponents of m (or, A001222(m) is the number of primes dividing m, counted with multiplicity).

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

[1, 1, 2, 2, 3, 1, 3, 2, 1, 3, 2, 1, 4, 3, 1, 5, 1, 2, 4, 3, 1, 5, 1, 4, 2, 4, 6, 3, 1, 2, 3, 1, 5, 2, 2, 1, 4, 2, 6, 3, 3, 5, 1, 3, 3, 5, 3, 7, 4, 1, 4, 6, 4, 3, 1, 2, 6, 2, 5, 1, 3, 2, 1, 5, 2, 2, 4, 1, 2, 4, 5, 2, 3, 4, 2, 6, 3, 4, 1, 3, 1, 4, 3, 1, 3, 3, 4, 5, 1, 3, 3, 5, 1, 5, 3, 2, 5, 3, 7, 2, 4, 2, 2, 2, 1]

cp's OEIS Frontend

A160650 a(n) = A001222(A160649(n)) = A160649(n+1) - A160649(n); where A001222(m) is the sum of prime-factorization exponents of m (or, A001222(m) is the number of primes dividing m, counted with multiplicity).

Table of values

List of values

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

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

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