A372938 - cp's OEIS frontend

A372938 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = Sum_{1 <= x_1, x_2, ..., x_k <= n} gcd(x_1, x_2, ..., x_k, n)^k.

n	a(n)
1	1
2	1
3	3
4	1
5	7
6	5
7	1
8	15
9	17
10	8
11	1
12	31
13	53
14	40
15	9
16	1
17	63
18	161
19	176
20	49
21	15
22	1
23	127
24	485
25	736
26	249
27	119
28	13
29	1
30	255
31	1457
32	3008
33	1249
34	795
35	97
36	20
37	1
38	511
39	4373
40	12160
41	6249
42	4991
43	685
44	208
45	21
46	1
47	1023
48	13121
49	48896
50	31249
51	30555
52	4801
53	1856
54	225
55	27

[1, 1, 3, 1, 7, 5, 1, 15, 17, 8, 1, 31, 53, 40, 9, 1, 63, 161, 176, 49, 15, 1, 127, 485, 736, 249, 119, 13, 1, 255, 1457, 3008, 1249, 795, 97, 20, 1, 511, 4373, 12160, 6249, 4991, 685, 208, 21, 1, 1023, 13121, 48896, 31249, 30555, 4801, 1856, 225, 27]

cp's OEIS Frontend

A372938 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = Sum_{1 <= x_1, x_2, ..., x_k <= n} gcd(x_1, x_2, ..., x_k, n)^k.

Table of values

List of values