OFFSET
1,1
COMMENTS
The corresponding numbers of 3-Carmichael numbers are: 1, 3, 6, 8, 9, 12, 16, 22, 24, 25, ... They are records of A290481.
EXAMPLE
13 is in the sequence since it is a factor of 8 3-Carmichael numbers, more numbers than for any prime below it: 3 and 11 are factors of a single 3-Carmichael number, 5 is a factor of 3 numbers, and 7 of 6 numbers.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Amiram Eldar, Aug 03 2017
EXTENSIONS
a(10) from Amiram Eldar, Jun 29 2019
STATUS
approved