OFFSET
1,2
COMMENTS
No other terms below 50000.
From Amiram Eldar, Jun 20 2024: (Start)
Numbers k such that A166226(k) = 0.
All the terms above 2 are composites since A166226(p) == 2 (mod p) for prime p. (End)
EXAMPLE
35 is in the sequence because A000110(35) = 35 * 8045720086273150473238297902.
MATHEMATICA
Select[Range[1000], Divisible[BellB[#], #] &]
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Vaclav Kotesovec, Sep 07 2019
STATUS
approved