A321391 - cp's OEIS frontend

A321391 Array read by antidiagonals: T(n,k) is the number of achiral rows of n colors using up to k colors.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	1
9	0
10	1
11	3
12	2
13	1
14	0
15	1
16	4
17	3
18	4
19	1
20	0
21	1
22	5
23	4
24	9
25	4
26	1
27	0
28	1
29	6
30	5
31	16
32	9
33	8
34	1
35	0
36	1
37	7
38	6
39	25
40	16
41	27
42	8
43	1
44	0
45	1
46	8
47	7
48	36
49	25
50	64
51	27
52	16
53	1
54	0
55	1
56	9
57	8
58	49
59	36
60	125
61	64
62	81
63	16
64	1
65	0
66	1
67	10
68	9
69	64
70	49
71	216
72	125
73	256
74	81
75	32
76	1
77	0

[1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 2, 1, 0, 1, 4, 3, 4, 1, 0, 1, 5, 4, 9, 4, 1, 0, 1, 6, 5, 16, 9, 8, 1, 0, 1, 7, 6, 25, 16, 27, 8, 1, 0, 1, 8, 7, 36, 25, 64, 27, 16, 1, 0, 1, 9, 8, 49, 36, 125, 64, 81, 16, 1, 0, 1, 10, 9, 64, 49, 216, 125, 256, 81, 32, 1, 0]

cp's OEIS Frontend

A321391 Array read by antidiagonals: T(n,k) is the number of achiral rows of n colors using up to k colors.

Table of values

List of values

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	1
9	0
10	1
11	3
12	2
13	1
14	0
15	1
16	4
17	3
18	4
19	1
20	0
21	1
22	5
23	4
24	9
25	4
26	1
27	0
28	1
29	6
30	5
31	16
32	9
33	8
34	1
35	0
36	1
37	7
38	6
39	25
40	16
41	27
42	8
43	1
44	0
45	1
46	8
47	7
48	36
49	25
50	64
51	27
52	16
53	1
54	0
55	1
56	9
57	8
58	49
59	36
60	125
61	64
62	81
63	16
64	1
65	0
66	1
67	10
68	9
69	64
70	49
71	216
72	125
73	256
74	81
75	32
76	1
77	0

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	1
9	0
10	1
11	3
12	2
13	1
14	0
15	1
16	4
17	3
18	4
19	1
20	0
21	1
22	5
23	4
24	9
25	4
26	1
27	0
28	1
29	6
30	5
31	16
32	9
33	8
34	1
35	0
36	1
37	7
38	6
39	25
40	16
41	27
42	8
43	1
44	0
45	1
46	8
47	7
48	36
49	25
50	64
51	27
52	16
53	1
54	0
55	1
56	9
57	8
58	49
59	36
60	125
61	64
62	81
63	16
64	1
65	0
66	1
67	10
68	9
69	64
70	49
71	216
72	125
73	256
74	81
75	32
76	1
77	0

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	1
9	0
10	1
11	3
12	2
13	1
14	0
15	1
16	4
17	3
18	4
19	1
20	0
21	1
22	5
23	4
24	9
25	4
26	1
27	0
28	1
29	6
30	5
31	16
32	9
33	8
34	1
35	0
36	1
37	7
38	6
39	25
40	16
41	27
42	8
43	1
44	0
45	1
46	8
47	7
48	36
49	25
50	64
51	27
52	16
53	1
54	0
55	1
56	9
57	8
58	49
59	36
60	125
61	64
62	81
63	16
64	1
65	0
66	1
67	10
68	9
69	64
70	49
71	216
72	125
73	256
74	81
75	32
76	1
77	0