A225432 - cp's OEIS frontend

A225432 Twice the coefficient of sqrt(q) in e^h, where e is the fundamental unit and h is the class number of Q(sqrt(q)), q prime and congruent to 1 mod 4. (The coefficient lies in (1/2)Z, so twice it is an integer.)

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	10
7	1
8	5
9	250
10	106
11	1138
12	2
13	25
14	146
15	298
16	5
17	17
18	1
19	97
20	253970
21	2
22	226
23	3034
24	9148450
25	2050
26	10
27	157
28	126890
29	1
30	14341370
31	5
32	110671282
33	986
34	7586
35	530
36	130
37	173
38	5129602
39	11068353370
40	21685
41	694966754
42	17883410
43	5528222698
44	17
45	41
46	11248618
47	60037
48	10
49	242718010
50	24514292738

[1, 1, 2, 1, 2, 10, 1, 5, 250, 106, 1138, 2, 25, 146, 298, 5, 17, 1, 97, 253970, 2, 226, 3034, 9148450, 2050, 10, 157, 126890, 1, 14341370, 5, 110671282, 986, 7586, 530, 130, 173, 5129602, 11068353370, 21685, 694966754, 17883410, 5528222698, 17, 41, 11248618, 60037, 10, 242718010, 24514292738]

cp's OEIS Frontend

A225432 Twice the coefficient of sqrt(q) in e^h, where e is the fundamental unit and h is the class number of Q(sqrt(q)), q prime and congruent to 1 mod 4. (The coefficient lies in (1/2)Z, so twice it is an integer.)

Table of values

List of values