A228782 - cp's OEIS frontend

A228782 Irregular triangle read by rows: coefficients of minimal polynomial of a certain algebraic number S2(2k) from Q(2cos(Pi/(2k))) related to the regular (2k)-gon.

n	a(n)
1	-4
2	1
3	4
4	-12
5	1
6	36
7	-24
8	1
9	16
10	-96
11	136
12	-40
13	1
14	16
15	-96
16	136
17	-56
18	1
19	16
20	-320
21	456
22	-80
23	1
24	3136
25	-12544
26	14896
27	-7168
28	1484
29	-112
30	1
31	256
32	-7168
33	41216
34	-73472
35	53344
36	-17472
37	2576
38	-144
39	1
40	64
41	-1152
42	5424
43	-6080
44	2124
45	-168
46	1
47	256
48	-13312
49	62720
50	-104192
51	76384
52	-26048
53	3920
54	-208
55	1

[-4, 1, 4, -12, 1, 36, -24, 1, 16, -96, 136, -40, 1, 16, -96, 136, -56, 1, 16, -320, 456, -80, 1, 3136, -12544, 14896, -7168, 1484, -112, 1, 256, -7168, 41216, -73472, 53344, -17472, 2576, -144, 1, 64, -1152, 5424, -6080, 2124, -168, 1, 256, -13312, 62720, -104192, 76384, -26048, 3920, -208, 1]

cp's OEIS Frontend

A228782 Irregular triangle read by rows: coefficients of minimal polynomial of a certain algebraic number S2(2k) from Q(2cos(Pi/(2k))) related to the regular (2k)-gon.

Table of values

List of values

cp's OEIS Frontend

A228782 Irregular triangle read by rows: coefficients of minimal polynomial of a certain algebraic number S2(2*k) from Q(2*cos(Pi/(2*k))) related to the regular (2*k)-gon.

Table of values

List of values

A228782 Irregular triangle read by rows: coefficients of minimal polynomial of a certain algebraic number S2(2k) from Q(2cos(Pi/(2k))) related to the regular (2k)-gon.