OFFSET
1,1
COMMENTS
Numbers k such that k, k+1, and k+2 are all members of A046387. - N. J. A. Sloane, Jul 17 2024
All terms are congruent to 1 mod 4. - Zak Seidov, Dec 22 2014
LINKS
Zak Seidov, Table of n, a(n) for n = 1..154
EXAMPLE
a(1)=16467033 because it is the product of 5 distinct primes (3,11,17,149,197), and so are a(1)+1: 16467034 (2,19,23,83,227), and a(1)+2: 16467035 (5,13,37,41,167).
MATHEMATICA
SequencePosition[Table[If[PrimeNu[n]==PrimeOmega[n]==5, 1, 0], {n, 164*10^5, 406*10^5}], {1, 1, 1}][[;; , 1]]+164*10^5-1 (* Harvey P. Dale, Jul 17 2024 *)
PROG
(PARI) forstep(n=1+10^7, 1e8, 4, for(k=n, n+2, issquarefree(k)||next(2)); for(k=n, n+2, omega(k)==5||next(2)); print1((n)", ")) \\ M. F. Hasler, May 19 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Gil Broussard, Jun 25 2011
STATUS
approved