A382994 - cp's OEIS frontend

A382994 Square array A(n,k), n >= 1, k >= 1, read by antidiagonals downwards, where A(n,k) = -Sum_{d|n} phi(n/d) * (-k)^d.

n	a(n)
1	1
2	2
3	0
4	3
5	-2
6	3
7	4
8	-6
9	12
10	0
11	5
12	-12
13	33
14	-16
15	5
16	6
17	-20
18	72
19	-84
20	40
21	0
22	7
23	-30
24	135
25	-264
26	255
27	-60
28	7
29	8
30	-42
31	228
32	-640
33	1040
34	-714
35	140
36	0
37	9
38	-56
39	357
40	-1320
41	3145
42	-4056
43	2205
44	-272
45	9
46	10
47	-72
48	528
49	-2436
50	7800
51	-15540
52	16408
53	-6648
54	540
55	0

[1, 2, 0, 3, -2, 3, 4, -6, 12, 0, 5, -12, 33, -16, 5, 6, -20, 72, -84, 40, 0, 7, -30, 135, -264, 255, -60, 7, 8, -42, 228, -640, 1040, -714, 140, 0, 9, -56, 357, -1320, 3145, -4056, 2205, -272, 9, 10, -72, 528, -2436, 7800, -15540, 16408, -6648, 540, 0]

cp's OEIS Frontend

A382994 Square array A(n,k), n >= 1, k >= 1, read by antidiagonals downwards, where A(n,k) = -Sum_{d|n} phi(n/d) * (-k)^d.

Table of values

List of values