A180044 - cp's OEIS frontend

A180044 Let the n-th Carmichael number A002997(n) = p1p2...pr, where p1 < p2 < ... < pr are primes. Then a(n) = (p1-1) (p1p2...pr - 1)^(r-2) / ((p2-1)...*(pr-1)).

n	a(n)
1	7
2	23
3	48
4	22
5	47
6	45
7	45
8	21
9	44
10	163
11	2105352
12	162
13	43
14	486266
15	3157729
16	9859600
17	5110605
18	161
19	6146018
20	280
21	8225424
22	9135075
23	1684
24	6185169
25	1363
26	159
27	351
28	59907600
29	950
30	1675
31	9879408
32	1358
33	949
34	158
35	95468562
36	4399220
37	83722500

[7, 23, 48, 22, 47, 45, 45, 21, 44, 163, 2105352, 162, 43, 486266, 3157729, 9859600, 5110605, 161, 6146018, 280, 8225424, 9135075, 1684, 6185169, 1363, 159, 351, 59907600, 950, 1675, 9879408, 1358, 949, 158, 95468562, 4399220, 83722500]

cp's OEIS Frontend

A180044 Let the n-th Carmichael number A002997(n) = p1p2...pr, where p1 < p2 < ... < pr are primes. Then a(n) = (p1-1) (p1p2...pr - 1)^(r-2) / ((p2-1)...*(pr-1)).

Table of values

List of values

cp's OEIS Frontend

A180044 Let the n-th Carmichael number A002997(n) = p1*p2*...*pr, where p1 < p2 < ... < pr are primes. Then a(n) = (p1-1) * (p1*p2*...*pr - 1)^(r-2) / ((p2-1)*...*(pr-1)).

Table of values

List of values

A180044 Let the n-th Carmichael number A002997(n) = p1p2...pr, where p1 < p2 < ... < pr are primes. Then a(n) = (p1-1) (p1p2...pr - 1)^(r-2) / ((p2-1)...*(pr-1)).