A367824 - cp's OEIS frontend

A367824 Array read by ascending antidiagonals: A(n, k) is the numerator of (R(n) - k)/(n + k), where R(n) is the digit reversal of n, with A(0, 0) = 1.

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

[1, 1, -1, 1, 0, -1, 1, 1, -1, -1, 1, 1, 0, -1, -1, 1, 3, 1, -1, -3, -1, 1, 2, 1, 0, -1, -2, -1, 1, 5, 3, 1, -1, -3, -5, -1, 1, 3, 1, 1, 0, -1, -1, -3, -1, 1, 7, 5, 1, 1, -1, -1, -5, -7, -1, 1, 4, 3, 2, 1, 0, -1, -2, -3, -4, -1, 1, 0, 7, 5, 3, 1, -1, -3, -5, -7, -9, -1]

cp's OEIS Frontend

A367824 Array read by ascending antidiagonals: A(n, k) is the numerator of (R(n) - k)/(n + k), where R(n) is the digit reversal of n, with A(0, 0) = 1.

Table of values

List of values

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

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

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