A290307 - cp's OEIS frontend

A290307 Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of Product_{j>=1} (1 + x^j)/(1 + x^(k*j)).

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

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

cp's OEIS Frontend

A290307 Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of Product_{j>=1} (1 + x^j)/(1 + x^(k*j)).

Table of values

List of values

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

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

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