A320000 - cp's OEIS frontend

A320000 Square array A(n, k) read by descending antidiagonals: A(1, 1) = 2, A(1, k) = 1 for k > 1, and for n > 1, A(n, k) = Sum_{d|n, d>=k} A010051(1+d)*[Sum_{i=0..valuation(n,1+d)} A((n/d)/((1+d)^i), 1+d)].

n	a(n)
1	2
2	1
3	3
4	1
5	1
6	0
7	1
8	0
9	0
10	4
11	1
12	0
13	0
14	1
15	0
16	1
17	0
18	0
19	1
20	0
21	4
22	1
23	0
24	0
25	1
26	0
27	2
28	0
29	1
30	0
31	0
32	0
33	0
34	1
35	0
36	5
37	1
38	0
39	0
40	0
41	0
42	1
43	0
44	1
45	0
46	1
47	0
48	0
49	0
50	0
51	1
52	0
53	0
54	0
55	2
56	1
57	0
58	0
59	0
60	0
61	1
62	0
63	0
64	0
65	1
66	0
67	1
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	0
78	6
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	2
91	0
92	1
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	0

[2, 1, 3, 1, 1, 0, 1, 0, 0, 4, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 4, 1, 0, 0, 1, 0, 2, 0, 1, 0, 0, 0, 0, 1, 0, 5, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 2, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 6, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0]

cp's OEIS Frontend

A320000 Square array A(n, k) read by descending antidiagonals: A(1, 1) = 2, A(1, k) = 1 for k > 1, and for n > 1, A(n, k) = Sum_{d|n, d>=k} A010051(1+d)*[Sum_{i=0..valuation(n,1+d)} A((n/d)/((1+d)^i), 1+d)].

Table of values

List of values

n	a(n)
1	2
2	1
3	3
4	1
5	1
6	0
7	1
8	0
9	0
10	4
11	1
12	0
13	0
14	1
15	0
16	1
17	0
18	0
19	1
20	0
21	4
22	1
23	0
24	0
25	1
26	0
27	2
28	0
29	1
30	0
31	0
32	0
33	0
34	1
35	0
36	5
37	1
38	0
39	0
40	0
41	0
42	1
43	0
44	1
45	0
46	1
47	0
48	0
49	0
50	0
51	1
52	0
53	0
54	0
55	2
56	1
57	0
58	0
59	0
60	0
61	1
62	0
63	0
64	0
65	1
66	0
67	1
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	0
78	6
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	2
91	0
92	1
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	0

n	a(n)
1	2
2	1
3	3
4	1
5	1
6	0
7	1
8	0
9	0
10	4
11	1
12	0
13	0
14	1
15	0
16	1
17	0
18	0
19	1
20	0
21	4
22	1
23	0
24	0
25	1
26	0
27	2
28	0
29	1
30	0
31	0
32	0
33	0
34	1
35	0
36	5
37	1
38	0
39	0
40	0
41	0
42	1
43	0
44	1
45	0
46	1
47	0
48	0
49	0
50	0
51	1
52	0
53	0
54	0
55	2
56	1
57	0
58	0
59	0
60	0
61	1
62	0
63	0
64	0
65	1
66	0
67	1
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	0
78	6
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	2
91	0
92	1
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	0

n	a(n)
1	2
2	1
3	3
4	1
5	1
6	0
7	1
8	0
9	0
10	4
11	1
12	0
13	0
14	1
15	0
16	1
17	0
18	0
19	1
20	0
21	4
22	1
23	0
24	0
25	1
26	0
27	2
28	0
29	1
30	0
31	0
32	0
33	0
34	1
35	0
36	5
37	1
38	0
39	0
40	0
41	0
42	1
43	0
44	1
45	0
46	1
47	0
48	0
49	0
50	0
51	1
52	0
53	0
54	0
55	2
56	1
57	0
58	0
59	0
60	0
61	1
62	0
63	0
64	0
65	1
66	0
67	1
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	0
78	6
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	2
91	0
92	1
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	1
102	0
103	1
104	0
105	0