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 A069346 Primes of the form n - Omega(n), where Omega(n) is the number of prime factors of n, A001222(n). 7
 2, 5, 7, 13, 17, 19, 23, 31, 37, 41, 43, 47, 53, 67, 73, 83, 89, 103, 107, 109, 113, 127, 131, 139, 151, 157, 163, 167, 179, 181, 199, 211, 227, 233, 239, 241, 251, 257, 263, 281, 283, 293, 307, 311, 313, 317, 337, 347, 353, 359 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The representation is ambiguous, see A069347. LINKS Charles R Greathouse IV, Table of n, a(n) for n = 1..10000 EXAMPLE a(10) = 41 = A069345(44) = 44-3 (as 44 = 2*2*11). MATHEMATICA Select[Table[n - PrimeOmega[n], {n, 1, 400}], PrimeQ] // Union (* Jean-François Alcover, Jun 08 2013 *) PROG (PARI) is(n)=for(k=1, log(n)\log(2)+1, if(bigomega(n+k)==k, return(isprime(n)))); 0 \\ Charles R Greathouse IV, Dec 10 2013 CROSSREFS Cf. A069348, A069356. Sequence in context: A275284 A261123 A249330 * A023240 A291284 A023204 Adjacent sequences:  A069343 A069344 A069345 * A069347 A069348 A069349 KEYWORD nonn AUTHOR Reinhard Zumkeller, Mar 18 2002 STATUS approved

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Last modified October 15 10:46 EDT 2019. Contains 328026 sequences. (Running on oeis4.)