A318958 - cp's OEIS frontend

A318958 A(n, k) is a square array read in the decreasing antidiagonals, for n >= 0 and k >= 0.

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

[0, 0, 0, 0, -1, -1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 2, 2, 3, 2, 2, 0, 1, 3, 3, 4, 3, 3, 0, 3, 4, 6, 6, 7, 6, 6, 0, 2, 5, 6, 8, 8, 9, 8, 8, 0, 4, 6, 9, 10, 12, 12, 13, 12, 12, 0, 3, 7, 9, 12, 13, 15, 15, 16, 15, 15, 0, 5, 8, 12, 14, 17, 18, 20, 20, 21, 20, 20]

cp's OEIS Frontend

A318958 A(n, k) is a square array read in the decreasing antidiagonals, for n >= 0 and k >= 0.

Table of values

List of values

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

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

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