A344824 - cp's OEIS frontend

A344824 Square array A(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where A(n,k) = Sum_{j=1..n} floor(n/j) * (-k)^(j-1).

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	3
7	1
8	0
9	3
10	4
11	1
12	-1
13	5
14	2
15	5
16	1
17	-2
18	9
19	-4
20	4
21	6
22	1
23	-3
24	15
25	-20
26	13
27	4
28	7
29	1
30	-4
31	23
32	-52
33	62
34	-16
35	6
36	8
37	1
38	-5
39	33
40	-106
41	205
42	-174
43	49
44	4
45	9
46	1
47	-6
48	45
49	-188
50	520
51	-806
52	556
53	-88
54	7
55	10
56	1
57	-7
58	59
59	-304
60	1109
61	-2584
62	3291
63	-1660
64	173
65	7
66	11

[1, 1, 2, 1, 1, 3, 1, 0, 3, 4, 1, -1, 5, 2, 5, 1, -2, 9, -4, 4, 6, 1, -3, 15, -20, 13, 4, 7, 1, -4, 23, -52, 62, -16, 6, 8, 1, -5, 33, -106, 205, -174, 49, 4, 9, 1, -6, 45, -188, 520, -806, 556, -88, 7, 10, 1, -7, 59, -304, 1109, -2584, 3291, -1660, 173, 7, 11]

cp's OEIS Frontend

A344824 Square array A(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where A(n,k) = Sum_{j=1..n} floor(n/j) * (-k)^(j-1).

Table of values

List of values