A142593 - cp's OEIS frontend

A142593 Irregular triangle read by rows: row n gives successive exponents in prime factorization of A141900(n).

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

[1, 2, 1, 3, 1, 4, 1, 1, 5, 1, 1, 6, 1, 1, 1, 7, 1, 1, 1, 8, 3, 1, 1, 9, 3, 1, 1, 10, 3, 1, 1, 1, 11, 3, 1, 1, 1, 12, 3, 1, 1, 1, 1, 13, 3, 1, 1, 1, 1, 14, 3, 1, 1, 1, 1, 15, 3, 1, 1, 1, 1, 16, 3, 1, 1, 1, 1, 1, 17, 3, 1, 1, 1, 1, 1, 18, 3, 1, 1, 1, 1, 1, 1, 19, 3, 1, 1, 1, 1, 1, 1, 20, 3, 1, 1]

cp's OEIS Frontend

A142593 Irregular triangle read by rows: row n gives successive exponents in prime factorization of A141900(n).

Table of values

List of values

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

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

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