A277640 - cp's OEIS frontend

A277640 a(n) is the integer r with |r| < prime(n)/2 such that (T(prime(n)^2)-T(prime(n)))/prime(n)^4 == r (mod prime(n)), where T(k) denotes the central trinomial coefficient A002426(k).

n	a(n)
3	-2
4	1
5	-3
6	-1
7	7
8	-1
9	6
10	4
11	-15
12	-15
13	-13
14	1
15	-23
16	1
17	8
18	-15
19	-22
20	13
21	-33
22	27
23	25
24	11
25	-17
26	24
27	-32
28	-53
29	31
30	42
31	-19
32	18
33	-35
34	55
35	-5
36	38
37	-29
38	76
39	34
40	44
41	-71
42	-21
43	-13
44	16
45	46
46	70
47	92
48	70
49	-39
50	88
51	-84
52	-118
53	-120
54	64
55	107
56	111
57	-56
58	124
59	-13
60	-23

[-2, 1, -3, -1, 7, -1, 6, 4, -15, -15, -13, 1, -23, 1, 8, -15, -22, 13, -33, 27, 25, 11, -17, 24, -32, -53, 31, 42, -19, 18, -35, 55, -5, 38, -29, 76, 34, 44, -71, -21, -13, 16, 46, 70, 92, 70, -39, 88, -84, -118, -120, 64, 107, 111, -56, 124, -13, -23]

cp's OEIS Frontend

A277640 a(n) is the integer r with |r| < prime(n)/2 such that (T(prime(n)^2)-T(prime(n)))/prime(n)^4 == r (mod prime(n)), where T(k) denotes the central trinomial coefficient A002426(k).

Table of values

List of values