OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
Numbers k such that bigomega(k) = bigomega(3*k+1).
MAPLE
with(numtheory): A271909:=n->`if`(bigomega(n)=bigomega(3*n+1), n, NULL): seq(A271909(n), n=1..800); # Wesley Ivan Hurt, Apr 22 2016
MATHEMATICA
Select[Range[350], PrimeOmega[#] == PrimeOmega[3 # + 1] &] (* Amiram Eldar, Apr 02 2020 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Benjamin Przybocki, Apr 22 2016
STATUS
approved